Plant Biology Science Free online practice objective Questions
Free Objective Science Plant Biology Tests Online Practice Test
Free Multiple Choice Question In Plant Biology and Science Online Practice Test
1. The pyramid of biomass is inverted in pond ecosystem
(a) pond ecosystem
(b) grassland ecosystem
(c) forest ecosystem
(d) all the above
Ans. (a)
2. Which of the following plays an important role in nitrogen cycle?
(a) Rhizopus
(b) Nitrobacter
(c) Mucor
(d) Spirogyra
Ans. (b)
3. World climate is threatened by increase in concentration of
(a) oxygen
(b) nitrogen
(c) water vapours
(d) carbon dioxide
Ans. (d)
4. Ten per cent law of energy transfer in a food chain was enunciated by
(a) Lindeman
(b) Haeckel
(c) Schimper
(d) Zernicke
Ans. (a)
5. Alluvial soils in India are
(a) found in desert
(b) least fertile
(c) very rare
(d) most extensive soils
Ans. (d)
6. Which of the following environments is richest in free oxygen?
(a) Warm fresh water
(b) Atmosphere
(c) Cold fresh water
(d) Salt water
Ans. (b)
7. Ultraviolet radiation from sunlight causes the reaction that produces
(a) SO2
(b) CO
(c) zone
(d) fluorides
Ans. (c)
8. From the following, which is the best source of renewable energy?
(a) Petroleum
(b) Coal
(c) forests
(d) Cattle
Ans. (c)
9. A depleting source of energy is
(a) wind
(b) sunlight
(c) water
(d) fossil fuels
Ans. (d)
10. The species, which are in danger of extinction, are referred to as
(a) endangered species
(b) vulnerable species
(c) threatened species
(d) rare species
Ans. (a)
11. When plant diversity is maintained in natural habitat the conservation is called
(a) in vivo
(b) in vitro
(c) ex situ
(d) in situ
Ans. (d)
12. An American plant that had become a troublesome waterweed in India is
(a) Trapa bispinosa
(b) Cyperus rotundus
(c) Eichhornia crassipes
(d) Typha latfolia
Ans. (c)
13. Carbon monoxide is a pollutant because it
(a) inhibits glycolysis
(b) combines with haemoglobin
(c) inactivates nerves
(d) combines with oxygen
Ans. (b)
14. Which of the following atmospheric pollutants does the exhaust of motor vehicles do
NOT produce?
(a) SO2
(b) Fly ash
(c) Hydrocarbon gases
(d) CO
Ans. (b)
15. Gas released during Bhopal tragedy was
(a) sodium isothiocyanate
(b) potassium isothiocyanate
(c) ethyl isothiocyanate
(d) dmethyl isocyanate
Ans. (d)
16. Terracing is an effective method of soil conservation in
(a) desert areas
(b) plain areas
(c) hill areas
(d) none of these
Ans. (c)
17. Which of the following serves as indicator of atmospheric pollution?
(a) Liverworts
(b) Hornworts
(c) Epiphytic lichens
(d) Ferns
Ans. (c)
18. DDT is
(a) non-degradable pollutant
(b) degradable pollutant
(c) green house gas
(d) none of these
Ans. (a)
19. Minamata disease is a pollution-related disease, which results from
(a) release of human organic waste into drinking water
(b) accumulation of arsenic into atmosphere
(c) release of industrial waste mercury into fishing water
(d) oil spills into sea
Ans. (c)
20. Mulching is a process that helps in
(a) weed control
(b) soil fertility
(c) moisture conservation
(d) improvement of soil structure
Ans. (c)
Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts
Thursday, September 1, 2011
Temperature objective type questions Science Quiz
Temperature objective type questions Science Quiz
General Science Quiz - Multiple Choice Questions with Answers
Competitive Exams Quiz: Science Multiple Choice Questions on Temparature
1. Water in a container is heated from 0°C to 10°C. Its volume
(a) increases for the full given range (from 0°C to 10°C)
(b) decreases up to 4°C, then increases
(c) increases up to 4°C, then decreases
(d) decreases for the full range (from 0°C to 10°C)
Ans. (b)
2. 233 K is equal to
(a) 40°F
(b) -40°F
(c) 172°F
(d) -172°F
Ans. (b)
3. The volume of mole of a prefect gas at NTP is
(a) 22.4 liters
(b) 2.24 liters
(c) 100 liters
(d) none of these
Ans. (a)
4. -40°F on absolute scale is equal to
(a) 0 K
(b) 233 K
(c) 273 K
(d) 313 K
Ans. (b)
5. A temperature difference of 27°C on the Kelvin scale is
(a) 27 K
(b) 300 K
(c) -246 K
(d) zero
Ans. (a)
6. A temperature difference of 15°C on the Fahrenheit scale is
(a) 47°F
(b) 59°F
(c)-27 °F
(d)-59°F
Ans. (a)
7. At what temperature do the Fahrenheit and Celsius scales give the same reading?
(a) 400
(b) 00
(c) 574.25°
(d) 273°
Ans. (a)
8. When 1 g of ice melts at 0°C
(a) 80 cal of heat is liberated
(b) 80 cal of heat is absorbed
(c) no heat is required
(d) none of these
Ans. (b)
9. A beaker contains 40 g of water at 20°C. Now 50 g of ice is put into the beaker. The resulting temperature will be
(a) -7°C
(b) 0°C
(c) 10°C
(d) 1.5°C
Ans. (b)
10. 5 g of ice at 0°C and 20 g of water at 45°C are mixed. The temperature of the
mixture will be
(a) 10°C
(b) 20°C
(c) 30°C
(d) 40°C
Ans. (b)
11. The amount of heat required to raise the temperature of a body by 1°C is called
(a) latent heat
(b) specific heat
(c) Thermal capacity
(d) none of these
Ans. (c)
12. If the temperature scale is changed from °C to °F. the numerical value of specific
heat will
(a) increase
(b) decrease
(c) remain unchanged
(d) nothing can be said
Ans. (b)
13. The amount of heat required to convert 1 g of ice (specific 0.5 cal g-1°C-1)
at -10°C to steam at 100°C is
(a) 721 cal
(b) 636 cal
(c) 716 cal
(d) none of these
Ans. (a)
14. How much ice must be added to 100 g water at 30°C in order to reduce its
temperature to 20°C?
(a) 10 g
(b) 80 g
(c) 400 g
(d) None of these
Ans. (a)
15. Two liquids have the densities in the ratio of 1 : 2 and specific heats in the
Ratio of 2: 1. The ratio of thermal capacity of equal volume of those liquids is
(a) 1: 1
(b) 1: 4
(c) 4:1
(d) 2:1
Ans. (a)
16. Which of the following substances has greatest specific heat?
(a) Iron
(b) Water
(c) Copper
(d) Mercury
Ans. (b)
17. When temperature is gradually decreased, the specific heat of a substance is
(a) Decreased
(b) Increased
(c) Remain unchanged
(d) Nothing can be said
Ans. (a)
18. 2 kg ice at 0°C is mixed with 8 kg of water at 20°C. The final temperature is
(a) 0°C
(b) 20°C
(c) 80°C
(d) None of these
Ans. (a)
19. Two bodies are in thermal equilibrium if they have same
(a) Temperature
(b) Amount of heat
(c) Specific heat
(d) Thermal capacity
Ans. (a)
20. A piece of ice at 0°C is put into a vessel containing water at 0°C. The ice will
(a) Melt
(b) Not melt
(c) Slightly melt
(d) Vanish in no time
Ans. (b)
General Science Quiz - Multiple Choice Questions with Answers
Competitive Exams Quiz: Science Multiple Choice Questions on Temparature
1. Water in a container is heated from 0°C to 10°C. Its volume
(a) increases for the full given range (from 0°C to 10°C)
(b) decreases up to 4°C, then increases
(c) increases up to 4°C, then decreases
(d) decreases for the full range (from 0°C to 10°C)
Ans. (b)
2. 233 K is equal to
(a) 40°F
(b) -40°F
(c) 172°F
(d) -172°F
Ans. (b)
3. The volume of mole of a prefect gas at NTP is
(a) 22.4 liters
(b) 2.24 liters
(c) 100 liters
(d) none of these
Ans. (a)
4. -40°F on absolute scale is equal to
(a) 0 K
(b) 233 K
(c) 273 K
(d) 313 K
Ans. (b)
5. A temperature difference of 27°C on the Kelvin scale is
(a) 27 K
(b) 300 K
(c) -246 K
(d) zero
Ans. (a)
6. A temperature difference of 15°C on the Fahrenheit scale is
(a) 47°F
(b) 59°F
(c)-27 °F
(d)-59°F
Ans. (a)
7. At what temperature do the Fahrenheit and Celsius scales give the same reading?
(a) 400
(b) 00
(c) 574.25°
(d) 273°
Ans. (a)
8. When 1 g of ice melts at 0°C
(a) 80 cal of heat is liberated
(b) 80 cal of heat is absorbed
(c) no heat is required
(d) none of these
Ans. (b)
9. A beaker contains 40 g of water at 20°C. Now 50 g of ice is put into the beaker. The resulting temperature will be
(a) -7°C
(b) 0°C
(c) 10°C
(d) 1.5°C
Ans. (b)
10. 5 g of ice at 0°C and 20 g of water at 45°C are mixed. The temperature of the
mixture will be
(a) 10°C
(b) 20°C
(c) 30°C
(d) 40°C
Ans. (b)
11. The amount of heat required to raise the temperature of a body by 1°C is called
(a) latent heat
(b) specific heat
(c) Thermal capacity
(d) none of these
Ans. (c)
12. If the temperature scale is changed from °C to °F. the numerical value of specific
heat will
(a) increase
(b) decrease
(c) remain unchanged
(d) nothing can be said
Ans. (b)
13. The amount of heat required to convert 1 g of ice (specific 0.5 cal g-1°C-1)
at -10°C to steam at 100°C is
(a) 721 cal
(b) 636 cal
(c) 716 cal
(d) none of these
Ans. (a)
14. How much ice must be added to 100 g water at 30°C in order to reduce its
temperature to 20°C?
(a) 10 g
(b) 80 g
(c) 400 g
(d) None of these
Ans. (a)
15. Two liquids have the densities in the ratio of 1 : 2 and specific heats in the
Ratio of 2: 1. The ratio of thermal capacity of equal volume of those liquids is
(a) 1: 1
(b) 1: 4
(c) 4:1
(d) 2:1
Ans. (a)
16. Which of the following substances has greatest specific heat?
(a) Iron
(b) Water
(c) Copper
(d) Mercury
Ans. (b)
17. When temperature is gradually decreased, the specific heat of a substance is
(a) Decreased
(b) Increased
(c) Remain unchanged
(d) Nothing can be said
Ans. (a)
18. 2 kg ice at 0°C is mixed with 8 kg of water at 20°C. The final temperature is
(a) 0°C
(b) 20°C
(c) 80°C
(d) None of these
Ans. (a)
19. Two bodies are in thermal equilibrium if they have same
(a) Temperature
(b) Amount of heat
(c) Specific heat
(d) Thermal capacity
Ans. (a)
20. A piece of ice at 0°C is put into a vessel containing water at 0°C. The ice will
(a) Melt
(b) Not melt
(c) Slightly melt
(d) Vanish in no time
Ans. (b)
Free Online GK objective test Science Questions
Free Online GK objective test Science Questions
Free Online General Knowledge Preparation Test Science
1. Oxyntic cells in stomach mainly secrete-
(a) Pepsin
(b) H C I
(c) Mucous
(d) Lipase
(e) Ptyalin
Answer. (b)
2. Streptomycin was discovered by-
(a) Alexander Flemings
(b) Joseph Lister
(c) Wakesman
(d) W. Shockley
(e) None of these
Answer. (c)
3. A cardiogram is used to trace the-
(a) Growth of plants
(b) Pulsation of the cardiac nerve
(c) Defects in the small intestine
(d) Proper heart function
(e) Function of lungs
Answer. (d)
4. The poor children of the under developed Countries normally suffer
from a disease Known as kwashiorkor. It is due to the Deficiency of-
(a) Iron
(b) Calcium
(c) Vitamin A
(d) Vitamin B
(e) Protein
Answer. (e)
5. Edward Jenner discovered-
(a) Antiseptic surgery
(b) Small pox Vaccine
(c) Insulin
(d) Malaria parasite
(e) Radium
Answer. (b)
6. Which of the following is proteolytic Enzyme?
(a) Adenine
(b) Insulin
(c) Diastase
(d) Pepsin
(e) Thymine
Answer. (d)
7. Who was the founder of Homeopathy?
(a) Berliner
(b) Robert Koch
(c) Hahnemann
(d) Broquet
(e) Elias How
Answer. (c)
8. Pigmented layer of the eye is known as-
(a) Retina
(b) Sclerotic
(c) Choroid
(d) Cornea
(e) Cone
Answer. (c)
9. Blood group of an individual is determined
By-
(a) Hemoglobin
(b) Antigen on R B C
(c) Antigen on W B C
(d) Genes
(e) Both, by RBC and WBC
Answer. (b)
10. What is allergy?
(a) It is a high altitude disease
(b) It is an abnormal reaction of the body by
The introduction of a foreign substance
(c) It is an attitude of repulsion towards
One’s enemies
(d) It is a bad habit of backbiting others
(e) It is a high blood pressure disease
Answer. (b)
11. The bacteria, which decompose nitrates of
The soil to set free nitrogen, are called-
(a) Nitrifying bacteria
(b) Symbiotic bacteria
(c) Nitrosifying bacteria
(d) Denitrifying bacteria
(e) Nitrogenous bacteria
Answer. (d)
12. According to scientists, the Big Bang occurred approximately ? years ago.
(a) 100 million
(b) 100 thousand
(c) 1 billion
(d) 15 billion
Ans. (d)
13. PASTEUR succeeded in disproving the spontaneous generation theory because
(a) he was lucky
(b) he was ingenious in drawing out the neck of glass flasks, so as to provide access to air but not to microorganisms
(c) of the fact that sample of yeast taken by him was dead
(d) of the clear surrounding of his laboratory
Ans. (b)
14. Lateral meristem is responsible for
(a) Growth in parenchyma
(b) Growth in thickness
(c) Growth in cortex
(d) Growth in length.
Ans. (b)
15. As a tree grows older, which increases more rapidly in thickness?
(a) Sapwood
(b) Cortex
(c) Phloem
(d) Heartwood
Ans. (d)
16. The first organisms were
(a) primitive eukaryotes
(b) aerobic bacteria
(c) prokaryotic
(d) photosynthetic
Ans. (c)
17. Why was the primitive atmosphere of Earth more beneficial to the origin of life than the modern atmosphere of Earth?
(a) The primitive atmosphere had a layer of ozone that shielded the first delicate cells
(b) The primitive atmosphere was reducing one that facilitated the formation of complex
substances from simple molecules
(c) The primitive atmosphere was an oxidising one that facilitated the formation of complex substances from simple molecules
(d) The primitive atmosphere has less free energy than the modern atmosphere, and thus newly formed organisms were less likely to be destroyed
Ans. (b)
18. What is the other name for the cork tissue?
(a) Phellogen
(b) Phelloderm
(c) Phellem
(d) Periderm
Ans. (c)
19. Russian scientist who proposed the theory of origin of life was
(a) Oparin
(b) Miller
(c) Haldane
(d) Fox
Ans. (a)
20. Commercial cork is obtained from the species of
(a) Berberis
(b) Quercus
(c) Salix
(d) Betula
Ans. (b)
21. In their laboratory simulation of early Earth, Miller and Urey observed the abiotic synthesis
(a) amino acids
(b) coacervates
(c) DNA
(d) liposmes
Ans. (a)
23. The cross-section of a trunk of a tree showed 50 annual rings. The age of tree is
(a) 50 years
(b) 50 months
(c) 100 years
(d) 25 years
Ans. (a)
24. The richest source of fossils is
(a) basalt
(b) granite
(c) lava
(d) Sedimentary rock
Ans. (d)
25. Trees at seashore do not have annual rings because
(a) There is climatic variation
(b) There is no marked climatic variation
(c) There is enough moisture in the atmosphere
(d) Soil is sandy
Ans. (b)
Free Online General Knowledge Preparation Test Science
1. Oxyntic cells in stomach mainly secrete-
(a) Pepsin
(b) H C I
(c) Mucous
(d) Lipase
(e) Ptyalin
Answer. (b)
2. Streptomycin was discovered by-
(a) Alexander Flemings
(b) Joseph Lister
(c) Wakesman
(d) W. Shockley
(e) None of these
Answer. (c)
3. A cardiogram is used to trace the-
(a) Growth of plants
(b) Pulsation of the cardiac nerve
(c) Defects in the small intestine
(d) Proper heart function
(e) Function of lungs
Answer. (d)
4. The poor children of the under developed Countries normally suffer
from a disease Known as kwashiorkor. It is due to the Deficiency of-
(a) Iron
(b) Calcium
(c) Vitamin A
(d) Vitamin B
(e) Protein
Answer. (e)
5. Edward Jenner discovered-
(a) Antiseptic surgery
(b) Small pox Vaccine
(c) Insulin
(d) Malaria parasite
(e) Radium
Answer. (b)
6. Which of the following is proteolytic Enzyme?
(a) Adenine
(b) Insulin
(c) Diastase
(d) Pepsin
(e) Thymine
Answer. (d)
7. Who was the founder of Homeopathy?
(a) Berliner
(b) Robert Koch
(c) Hahnemann
(d) Broquet
(e) Elias How
Answer. (c)
8. Pigmented layer of the eye is known as-
(a) Retina
(b) Sclerotic
(c) Choroid
(d) Cornea
(e) Cone
Answer. (c)
9. Blood group of an individual is determined
By-
(a) Hemoglobin
(b) Antigen on R B C
(c) Antigen on W B C
(d) Genes
(e) Both, by RBC and WBC
Answer. (b)
10. What is allergy?
(a) It is a high altitude disease
(b) It is an abnormal reaction of the body by
The introduction of a foreign substance
(c) It is an attitude of repulsion towards
One’s enemies
(d) It is a bad habit of backbiting others
(e) It is a high blood pressure disease
Answer. (b)
11. The bacteria, which decompose nitrates of
The soil to set free nitrogen, are called-
(a) Nitrifying bacteria
(b) Symbiotic bacteria
(c) Nitrosifying bacteria
(d) Denitrifying bacteria
(e) Nitrogenous bacteria
Answer. (d)
12. According to scientists, the Big Bang occurred approximately ? years ago.
(a) 100 million
(b) 100 thousand
(c) 1 billion
(d) 15 billion
Ans. (d)
13. PASTEUR succeeded in disproving the spontaneous generation theory because
(a) he was lucky
(b) he was ingenious in drawing out the neck of glass flasks, so as to provide access to air but not to microorganisms
(c) of the fact that sample of yeast taken by him was dead
(d) of the clear surrounding of his laboratory
Ans. (b)
14. Lateral meristem is responsible for
(a) Growth in parenchyma
(b) Growth in thickness
(c) Growth in cortex
(d) Growth in length.
Ans. (b)
15. As a tree grows older, which increases more rapidly in thickness?
(a) Sapwood
(b) Cortex
(c) Phloem
(d) Heartwood
Ans. (d)
16. The first organisms were
(a) primitive eukaryotes
(b) aerobic bacteria
(c) prokaryotic
(d) photosynthetic
Ans. (c)
17. Why was the primitive atmosphere of Earth more beneficial to the origin of life than the modern atmosphere of Earth?
(a) The primitive atmosphere had a layer of ozone that shielded the first delicate cells
(b) The primitive atmosphere was reducing one that facilitated the formation of complex
substances from simple molecules
(c) The primitive atmosphere was an oxidising one that facilitated the formation of complex substances from simple molecules
(d) The primitive atmosphere has less free energy than the modern atmosphere, and thus newly formed organisms were less likely to be destroyed
Ans. (b)
18. What is the other name for the cork tissue?
(a) Phellogen
(b) Phelloderm
(c) Phellem
(d) Periderm
Ans. (c)
19. Russian scientist who proposed the theory of origin of life was
(a) Oparin
(b) Miller
(c) Haldane
(d) Fox
Ans. (a)
20. Commercial cork is obtained from the species of
(a) Berberis
(b) Quercus
(c) Salix
(d) Betula
Ans. (b)
21. In their laboratory simulation of early Earth, Miller and Urey observed the abiotic synthesis
(a) amino acids
(b) coacervates
(c) DNA
(d) liposmes
Ans. (a)
23. The cross-section of a trunk of a tree showed 50 annual rings. The age of tree is
(a) 50 years
(b) 50 months
(c) 100 years
(d) 25 years
Ans. (a)
24. The richest source of fossils is
(a) basalt
(b) granite
(c) lava
(d) Sedimentary rock
Ans. (d)
25. Trees at seashore do not have annual rings because
(a) There is climatic variation
(b) There is no marked climatic variation
(c) There is enough moisture in the atmosphere
(d) Soil is sandy
Ans. (b)
General Science Objective MCQ Practice test For Exams Like KVS UPSC RRB
General Science Objective MCQ Practice test For Exams Like KVS UPSC RRB
General Science Quiz Objective Questions with Answers
1. During dehydration, the substance that is
usually lost by the body-
(a) Sugar
(b) Sodium chloride V
(c) Calcium phosphate
(d) Potassium chloride
(e) Phosphorus salts
Answer. (b)
2. Man is-
(a) A primate
(b) An animal
(c) A carnivore
(d) A rodent
(e) None of the above
Answer. (a)
3. The acid that can be used as a hypnotic is-
(a) Tartaric acid
(b) Benzoic acid
(c) Butanoic acid
(d) Barbituric acid
(e) Nicotinic acid
Answer. (d)
4. The speed of light was first measured by-
(a) Romer
(b) Newton
(c) Galileo
(d) Huygens
(e) Davy
Answer. (a)
4 The phenomenon of radio activity is
Associated with-
(a) Emission of electrons
(b) Emission of spectra
(c) Fusion of nucleus
(d) Decay of the nucleus
(e) None of these
Answer. (d)
5 A “Celsius” is a unit-
(a) Of electric potential difference
(b) Of heat potential difference
(c) Of trigonometric angle
(d) Equivalent to degree Kelvin
(e) Equivalent to degree centigrade
Answer. (e)
6 The men talking on the surface of the
Moon-
(a) Cannot hear the sound of each other
(b) Hear the same sound again and again
(c) Hear the sound of each other in less time
Than on the earth
(d) Can hear the sound but its intensity will
Be very low
(e) Find the sound of their voices magnified
Answer. (a)
7 The Theory of Electrolysis was propounded
By-
(a) Ohm
(b) Faraday
(c) Coulomb
(d) Coulomb and Faraday jointly
(e) None of these
Answer. (b)
8 Molecular weight of a substance is-
(a) Only a number
(b) Expressed in mesons
(c) Expressed in microns
(d) Expressed in grams
(e) Expressed
9 The crystalline substance that changes into
Liquid on exposure to moist air is said to be-
(a) Effervescent
(b) Eflorescent
(c) Deliquescent
(d) Volatile
(e) Non-hydroscopic
Answer. (c)
10. Which of the following methods is not used
In making hard water soft?
(a) Boiling method
(b) Adding washing soda
(c) Permutit process
(d) Demineralization
(e) Chlorinating
Answer. (e)
11Temporary hardness of water is due to the
Presence of-
(a) Nitrates of calcium and magnesium
(b) Chlorides of calcium and magnesium
(c) Bicarbonates of calcium and magnesium
(d) Sulphates of calcium and magnesium
(e) Sulphates of potassium and magnesium
Answer. (c)
12 What would you observe if you add, with
shaking, excess of dilute NaOH solution to
an aqueous solution of aluminium chloride?
(a) A white precipitate which dissolves in
Excess NaOH
(b) A permanent white precipitate is formed
Immediately
(c) A green precipitate forms which turns
Red on standing in air
(d) No change is noted at first; a white
Precipitate is formed on standing
(e) None of these is formed
Answer. (a)
13 Sulphuric acid can be differentiated from
Sulphurous acid by the addition of-
(a) Ferric chloride solution
(b) Magnesium power
(c) Litmus solution
(d) Sodium carbonate solution
(e) Sodium chloride solution
Answer. (a)
14 Which one of the following forms of phosphorous
Is most reactive?
(a) Black phosphorous
(b) White phosphorous
(c) Violet phosphorous
(d) Red phosphorous
Answer. (b)
15 Heavy water (Deuterium) is usually prepared
From-
(a) Heavy hydrogen
(b) Rain water only
(c) Sea water only
(d) River water only
(e) Ordinary water
Answer. (e)
16. German silver is an alloy-
(a) Of silver and copper
(b) Of silver and aluminium
(c) Of copper, zinc and nickel
(d) Of nickel and aluminium
(e) That was first made in Germany
Answer. (c)
17An extremely acid resistant alloy is-
(a) Brass
(b) Magnesium
(c) Ferro silicon
(d) German silver
(e) Ferrous sulphate
Answer. (c)
18. Sugar are converted in the liver into-
(a) Ptyalin
(b) Glycogen
(c) Carbon dioxide and water
(d) Monosaccharides
(e) Glucose
Answer. (b)
19. Which of the following substance can be
Used as antipyretic?
(a) Morphine
(b) Barbituric acid
(c) Paracetamol
(d) Benzedrene
(e) Cocain
Answer. (c)
20 The principal mineral in marble is-
(a) Carbon
(b) Sodium
(c) Iodine
(d) Calcite Crystal
(e) Chalk
Answer. (d)
21Which of the following is the sweetest?
(a) Sucrose
(b) Maltose
(c) Glucose
(d) Fructose
(e) Saccharin
Answer. (e)
22 Mostly nuclear reactions are caused by-
(a) Positrons
(b) Mesons
(c) Neutrons
(d) Protons only
(e) Charged particles
Answer. (e)
23 Which of the following is used to measure
The configurations of sugars?
(a) Threose
(b) Glyceraldehyde
(c) Glucose
(d) Ribose
(e) Pentose
Answer. (b)
24 Carbohydrates respond to-
(a) Molish’s test
(b) Marsh test
(c) Iodoform test
(d) Furfural test
(e) Luca’s test
Answer. (a)
25. An alcohol on oxidation first yield aldehyde
Which on further oxidation yield carboxylic?
Acid, both containing same number of car-
Bon atoms as the alcohol, the alcohol is-
(a) Primary alcohol
(b) Polyhydric alcohol
(c) Tertiary alcohol
(d) Secondary alcohol
(e) None of the above
Answer. (a)
General Science Quiz Objective Questions with Answers
1. During dehydration, the substance that is
usually lost by the body-
(a) Sugar
(b) Sodium chloride V
(c) Calcium phosphate
(d) Potassium chloride
(e) Phosphorus salts
Answer. (b)
2. Man is-
(a) A primate
(b) An animal
(c) A carnivore
(d) A rodent
(e) None of the above
Answer. (a)
3. The acid that can be used as a hypnotic is-
(a) Tartaric acid
(b) Benzoic acid
(c) Butanoic acid
(d) Barbituric acid
(e) Nicotinic acid
Answer. (d)
4. The speed of light was first measured by-
(a) Romer
(b) Newton
(c) Galileo
(d) Huygens
(e) Davy
Answer. (a)
4 The phenomenon of radio activity is
Associated with-
(a) Emission of electrons
(b) Emission of spectra
(c) Fusion of nucleus
(d) Decay of the nucleus
(e) None of these
Answer. (d)
5 A “Celsius” is a unit-
(a) Of electric potential difference
(b) Of heat potential difference
(c) Of trigonometric angle
(d) Equivalent to degree Kelvin
(e) Equivalent to degree centigrade
Answer. (e)
6 The men talking on the surface of the
Moon-
(a) Cannot hear the sound of each other
(b) Hear the same sound again and again
(c) Hear the sound of each other in less time
Than on the earth
(d) Can hear the sound but its intensity will
Be very low
(e) Find the sound of their voices magnified
Answer. (a)
7 The Theory of Electrolysis was propounded
By-
(a) Ohm
(b) Faraday
(c) Coulomb
(d) Coulomb and Faraday jointly
(e) None of these
Answer. (b)
8 Molecular weight of a substance is-
(a) Only a number
(b) Expressed in mesons
(c) Expressed in microns
(d) Expressed in grams
(e) Expressed
9 The crystalline substance that changes into
Liquid on exposure to moist air is said to be-
(a) Effervescent
(b) Eflorescent
(c) Deliquescent
(d) Volatile
(e) Non-hydroscopic
Answer. (c)
10. Which of the following methods is not used
In making hard water soft?
(a) Boiling method
(b) Adding washing soda
(c) Permutit process
(d) Demineralization
(e) Chlorinating
Answer. (e)
11Temporary hardness of water is due to the
Presence of-
(a) Nitrates of calcium and magnesium
(b) Chlorides of calcium and magnesium
(c) Bicarbonates of calcium and magnesium
(d) Sulphates of calcium and magnesium
(e) Sulphates of potassium and magnesium
Answer. (c)
12 What would you observe if you add, with
shaking, excess of dilute NaOH solution to
an aqueous solution of aluminium chloride?
(a) A white precipitate which dissolves in
Excess NaOH
(b) A permanent white precipitate is formed
Immediately
(c) A green precipitate forms which turns
Red on standing in air
(d) No change is noted at first; a white
Precipitate is formed on standing
(e) None of these is formed
Answer. (a)
13 Sulphuric acid can be differentiated from
Sulphurous acid by the addition of-
(a) Ferric chloride solution
(b) Magnesium power
(c) Litmus solution
(d) Sodium carbonate solution
(e) Sodium chloride solution
Answer. (a)
14 Which one of the following forms of phosphorous
Is most reactive?
(a) Black phosphorous
(b) White phosphorous
(c) Violet phosphorous
(d) Red phosphorous
Answer. (b)
15 Heavy water (Deuterium) is usually prepared
From-
(a) Heavy hydrogen
(b) Rain water only
(c) Sea water only
(d) River water only
(e) Ordinary water
Answer. (e)
16. German silver is an alloy-
(a) Of silver and copper
(b) Of silver and aluminium
(c) Of copper, zinc and nickel
(d) Of nickel and aluminium
(e) That was first made in Germany
Answer. (c)
17An extremely acid resistant alloy is-
(a) Brass
(b) Magnesium
(c) Ferro silicon
(d) German silver
(e) Ferrous sulphate
Answer. (c)
18. Sugar are converted in the liver into-
(a) Ptyalin
(b) Glycogen
(c) Carbon dioxide and water
(d) Monosaccharides
(e) Glucose
Answer. (b)
19. Which of the following substance can be
Used as antipyretic?
(a) Morphine
(b) Barbituric acid
(c) Paracetamol
(d) Benzedrene
(e) Cocain
Answer. (c)
20 The principal mineral in marble is-
(a) Carbon
(b) Sodium
(c) Iodine
(d) Calcite Crystal
(e) Chalk
Answer. (d)
21Which of the following is the sweetest?
(a) Sucrose
(b) Maltose
(c) Glucose
(d) Fructose
(e) Saccharin
Answer. (e)
22 Mostly nuclear reactions are caused by-
(a) Positrons
(b) Mesons
(c) Neutrons
(d) Protons only
(e) Charged particles
Answer. (e)
23 Which of the following is used to measure
The configurations of sugars?
(a) Threose
(b) Glyceraldehyde
(c) Glucose
(d) Ribose
(e) Pentose
Answer. (b)
24 Carbohydrates respond to-
(a) Molish’s test
(b) Marsh test
(c) Iodoform test
(d) Furfural test
(e) Luca’s test
Answer. (a)
25. An alcohol on oxidation first yield aldehyde
Which on further oxidation yield carboxylic?
Acid, both containing same number of car-
Bon atoms as the alcohol, the alcohol is-
(a) Primary alcohol
(b) Polyhydric alcohol
(c) Tertiary alcohol
(d) Secondary alcohol
(e) None of the above
Answer. (a)
Tuesday, August 23, 2011
General Science Objective MCQ Quiz
General Science Objective MCQ Quiz
1. Which of the following is the lightest metal?
(a) Mercury
(b) Silver
(c)Lithium
(d)Lead
2. The most important ore of aluminium is
(a) bauxite
(b) calamine
(c) calcite
(d) galena
3.Diamond is an allotropic form of
(a) silicon
(b) carbon
(c)sulphur
(d) germanium
4.Air is a/an
(a) compound
(b) element
(c) mixture
(d) electrolyte
5.Balloons are filled with?
(a)helium
(b) oxygen
(c)nitrogen
(d) argon
6. Production of chlorofluorocarbons (CFC) gas ( A green House gas) was used in which of the following domestic products?
(a)Television
(b) Tubelight
(c)Cooking gas
(d) Refrigerator
7. In which of the following activities silicon carbide is used?
(a) Making cenieut and glass
(b)Treating water of ponds
(c) Making casts for statues
(d) Cutting very hard substances
8.The element common to all acids is
(a)carbon
(b) hydrogen
(c)oxygen
(d) sulphur
9.Tetraethyl lead is used as
(a) mosquito repellent
(b) pain killer
(c) fire extinguisher
(d) petrol additive
10. Which of the following is a non-metal that remains liquid at room temperature?
(a) Bromine
(b) Chlorine
(c) Helium
(d) Phosphorus
11. From which mineral is radium obtained?
(a) Limestone
(b) Haematite
(c) Pitchblende
(d )Rutile
12.What is laughing gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Hydrogen peroxide
(d) Nitrous oxide
(e) Carbon monoxide
13. Which of the following is not correctly matched?
(a) Galena: Lead sulphide
(b) Green vitriol: Copper sulphate
(c) Plaster of Path: Calcium sulphate
(d) Calomel : Mercurous chloride
14. Which of the fojiowing metals forms an amalgam with other metals ?
(a) Lead
(b) Tin
(c) Zinc
(d) Mercury
15.Which of the following is an element?
(a)Ruby
(b) Sapphire
(c)Emerald
(d) Diamond
16.Sodium metal is kept under
(a) water
(b) alcohol
(c) petrol
(d) kerosene
17.Non sticic cooking utensils are coated with
(a) black paint
(b) PVC
(c)teflon
(d) polystyrene
18. Permanent hardness of water can be removed by adding
(a) potassium permanganate
(b) chlorine
(c) bleaching powder
(d) washing soda
19.Which of the following substances is a badconductor of electricity but a good conductor of heat?
(a)Asbestos
(b) Celluloid
(c)Purspecks
(d) Mica
20.Which of the following pairs does not contain a coinage metal?
(a) Copper and Gold
(b) Silver and Gold
(c )Zinc and Gold
(d) Copper and Silver
21. Which of the following is used in pencils?
(a)Charcoal
(b) Silicon
(c)Phosphorus
(d) Graphite
1. c
2.a
3.b
4 c
5 a
6. d
7 d
8 b
9 d
10 a
11 c
12 d
13 b
14 d
15 d
16 d
17 c
18 d
19 d
20 c
21 d
1. Which of the following is the lightest metal?
(a) Mercury
(b) Silver
(c)Lithium
(d)Lead
2. The most important ore of aluminium is
(a) bauxite
(b) calamine
(c) calcite
(d) galena
3.Diamond is an allotropic form of
(a) silicon
(b) carbon
(c)sulphur
(d) germanium
4.Air is a/an
(a) compound
(b) element
(c) mixture
(d) electrolyte
5.Balloons are filled with?
(a)helium
(b) oxygen
(c)nitrogen
(d) argon
6. Production of chlorofluorocarbons (CFC) gas ( A green House gas) was used in which of the following domestic products?
(a)Television
(b) Tubelight
(c)Cooking gas
(d) Refrigerator
7. In which of the following activities silicon carbide is used?
(a) Making cenieut and glass
(b)Treating water of ponds
(c) Making casts for statues
(d) Cutting very hard substances
8.The element common to all acids is
(a)carbon
(b) hydrogen
(c)oxygen
(d) sulphur
9.Tetraethyl lead is used as
(a) mosquito repellent
(b) pain killer
(c) fire extinguisher
(d) petrol additive
10. Which of the following is a non-metal that remains liquid at room temperature?
(a) Bromine
(b) Chlorine
(c) Helium
(d) Phosphorus
11. From which mineral is radium obtained?
(a) Limestone
(b) Haematite
(c) Pitchblende
(d )Rutile
12.What is laughing gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Hydrogen peroxide
(d) Nitrous oxide
(e) Carbon monoxide
13. Which of the following is not correctly matched?
(a) Galena: Lead sulphide
(b) Green vitriol: Copper sulphate
(c) Plaster of Path: Calcium sulphate
(d) Calomel : Mercurous chloride
14. Which of the fojiowing metals forms an amalgam with other metals ?
(a) Lead
(b) Tin
(c) Zinc
(d) Mercury
15.Which of the following is an element?
(a)Ruby
(b) Sapphire
(c)Emerald
(d) Diamond
16.Sodium metal is kept under
(a) water
(b) alcohol
(c) petrol
(d) kerosene
17.Non sticic cooking utensils are coated with
(a) black paint
(b) PVC
(c)teflon
(d) polystyrene
18. Permanent hardness of water can be removed by adding
(a) potassium permanganate
(b) chlorine
(c) bleaching powder
(d) washing soda
19.Which of the following substances is a badconductor of electricity but a good conductor of heat?
(a)Asbestos
(b) Celluloid
(c)Purspecks
(d) Mica
20.Which of the following pairs does not contain a coinage metal?
(a) Copper and Gold
(b) Silver and Gold
(c )Zinc and Gold
(d) Copper and Silver
21. Which of the following is used in pencils?
(a)Charcoal
(b) Silicon
(c)Phosphorus
(d) Graphite
1. c
2.a
3.b
4 c
5 a
6. d
7 d
8 b
9 d
10 a
11 c
12 d
13 b
14 d
15 d
16 d
17 c
18 d
19 d
20 c
21 d
General Science Objective MCQ Quiz
General Science Objective MCQ Quiz
1. Which of the following is the lightest metal?
(a) Mercury
(b) Silver
(c)Lithium
(d)Lead
2. The most important ore of aluminium is
(a) bauxite
(b) calamine
(c) calcite
(d) galena
3.Diamond is an allotropic form of
(a) silicon
(b) carbon
(c)sulphur
(d) germanium
4.Air is a/an
(a) compound
(b) element
(c) mixture
(d) electrolyte
5.Balloons are filled with?
(a)helium
(b) oxygen
(c)nitrogen
(d) argon
6. Production of chlorofluorocarbons (CFC) gas ( A green House gas) was used in which of the following domestic products?
(a)Television
(b) Tubelight
(c)Cooking gas
(d) Refrigerator
7. In which of the following activities silicon carbide is used?
(a) Making cenieut and glass
(b)Treating water of ponds
(c) Making casts for statues
(d) Cutting very hard substances
8.The element common to all acids is
(a)carbon
(b) hydrogen
(c)oxygen
(d) sulphur
9.Tetraethyl lead is used as
(a) mosquito repellent
(b) pain killer
(c) fire extinguisher
(d) petrol additive
10. Which of the following is a non-metal that remains liquid at room temperature?
(a) Bromine
(b) Chlorine
(c) Helium
(d) Phosphorus
11. From which mineral is radium obtained?
(a) Limestone
(b) Haematite
(c) Pitchblende
(d )Rutile
12.What is laughing gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Hydrogen peroxide
(d) Nitrous oxide
(e) Carbon monoxide
13. Which of the following is not correctly matched?
(a) Galena: Lead sulphide
(b) Green vitriol: Copper sulphate
(c) Plaster of Path: Calcium sulphate
(d) Calomel : Mercurous chloride
14. Which of the fojiowing metals forms an amalgam with other metals ?
(a) Lead
(b) Tin
(c) Zinc
(d) Mercury
15.Which of the following is an element?
(a)Ruby
(b) Sapphire
(c)Emerald
(d) Diamond
16.Sodium metal is kept under
(a) water
(b) alcohol
(c) petrol
(d) kerosene
17.Non sticic cooking utensils are coated with
(a) black paint
(b) PVC
(c)teflon
(d) polystyrene
18. Permanent hardness of water can be removed by adding
(a) potassium permanganate
(b) chlorine
(c) bleaching powder
(d) washing soda
19.Which of the following substances is a badconductor of electricity but a good conductor of heat?
(a)Asbestos
(b) Celluloid
(c)Purspecks
(d) Mica
20.Which of the following pairs does not contain a coinage metal?
(a) Copper and Gold
(b) Silver and Gold
(c )Zinc and Gold
(d) Copper and Silver
21. Which of the following is used in pencils?
(a)Charcoal
(b) Silicon
(c)Phosphorus
(d) Graphite
1. c
2.a
3.b
4 c
5 a
6. d
7 d
8 b
9 d
10 a
11 c
12 d
13 b
14 d
15 d
16 d
17 c
18 d
19 d
20 c
21 d
1. Which of the following is the lightest metal?
(a) Mercury
(b) Silver
(c)Lithium
(d)Lead
2. The most important ore of aluminium is
(a) bauxite
(b) calamine
(c) calcite
(d) galena
3.Diamond is an allotropic form of
(a) silicon
(b) carbon
(c)sulphur
(d) germanium
4.Air is a/an
(a) compound
(b) element
(c) mixture
(d) electrolyte
5.Balloons are filled with?
(a)helium
(b) oxygen
(c)nitrogen
(d) argon
6. Production of chlorofluorocarbons (CFC) gas ( A green House gas) was used in which of the following domestic products?
(a)Television
(b) Tubelight
(c)Cooking gas
(d) Refrigerator
7. In which of the following activities silicon carbide is used?
(a) Making cenieut and glass
(b)Treating water of ponds
(c) Making casts for statues
(d) Cutting very hard substances
8.The element common to all acids is
(a)carbon
(b) hydrogen
(c)oxygen
(d) sulphur
9.Tetraethyl lead is used as
(a) mosquito repellent
(b) pain killer
(c) fire extinguisher
(d) petrol additive
10. Which of the following is a non-metal that remains liquid at room temperature?
(a) Bromine
(b) Chlorine
(c) Helium
(d) Phosphorus
11. From which mineral is radium obtained?
(a) Limestone
(b) Haematite
(c) Pitchblende
(d )Rutile
12.What is laughing gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Hydrogen peroxide
(d) Nitrous oxide
(e) Carbon monoxide
13. Which of the following is not correctly matched?
(a) Galena: Lead sulphide
(b) Green vitriol: Copper sulphate
(c) Plaster of Path: Calcium sulphate
(d) Calomel : Mercurous chloride
14. Which of the fojiowing metals forms an amalgam with other metals ?
(a) Lead
(b) Tin
(c) Zinc
(d) Mercury
15.Which of the following is an element?
(a)Ruby
(b) Sapphire
(c)Emerald
(d) Diamond
16.Sodium metal is kept under
(a) water
(b) alcohol
(c) petrol
(d) kerosene
17.Non sticic cooking utensils are coated with
(a) black paint
(b) PVC
(c)teflon
(d) polystyrene
18. Permanent hardness of water can be removed by adding
(a) potassium permanganate
(b) chlorine
(c) bleaching powder
(d) washing soda
19.Which of the following substances is a badconductor of electricity but a good conductor of heat?
(a)Asbestos
(b) Celluloid
(c)Purspecks
(d) Mica
20.Which of the following pairs does not contain a coinage metal?
(a) Copper and Gold
(b) Silver and Gold
(c )Zinc and Gold
(d) Copper and Silver
21. Which of the following is used in pencils?
(a)Charcoal
(b) Silicon
(c)Phosphorus
(d) Graphite
1. c
2.a
3.b
4 c
5 a
6. d
7 d
8 b
9 d
10 a
11 c
12 d
13 b
14 d
15 d
16 d
17 c
18 d
19 d
20 c
21 d
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