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शनिवार, 18 फ़रवरी 2017

chemistry question answer


chemistry question answer

Q. Ink is prepared from -
1) Dye
2) Tannin
3) Starch
4) Latex


Ans: 1


Q. CaC2 on treatment with water gives -1) Methane
2) Ethane
3) Ethylene
4) Acetylene


Ans: 4


Q. Vinegar, very commonly used in Chinese food is actually -1) Ethyl alcohol
2) Folic Acid
3) Acetic Acid
4) Nitric Acid


Ans: 3


Q. Formic acid is a large component of -1) Citrus Fruit
2) Ant Venom
3) Vinegar
4) Spirit


Ans: 2


Q. Calcium is a constituent element of -1) Marble
2) Silicon
3) Dry Ice
4) Cooking Soda

View Answer

Ans: 1


Q. The group of substances that can burn easily are -1) paint thinner, coal, brick
2) coal, sand, alcohol
3) coal, alcohol, paper
4) brick, alcohol, coal


Ans: 3



Q. Common salt that we eat everyday contains -1) Sodium and Chloride
2) Sodium and Carbon
3) Calcium and Chlorine
4) Sodium and Aluminium


Ans: 1


Q. CASA ratio of bank indicate the -1) Bank deposits (current & saving)
2) High-value deposits
3) Non performing
4) Bank's loans


Ans: 1


Q. The pair of compounds used as anaesthetic in medicines -1) Nitrogen dioxide, ether
2) Ether, Ammonia
3) Nitrous oxide, Chloroform
4) Chloroform, Nitrogen dioxide


Ans: 1


Q. The percentage of carbon in cast iron is -1) 3 to 5
2) 0.1 to 0.25
3) 0.5 to 1.5
4) 6 to 8


Ans: 1


Q. The compound that has the least value for octane number is -1) n-heptane
2) 2-methyl heptane
3) Iso-octane
4) 2, 2-dimethyl hexane


Ans: 1


Q. The credit of construction of first nuclear reactor goes to -1) Niels Bohr
2) Fermi
3) Einstein
4) Oppenheimer

Ans: 2


Q. Which of the following react to produce urea?1) Ammonium Chloride + Calcium sulphae
2) Carbon dioxide + Ammonia
3) Acetic acid + Ammonia
4) Methane + Carbon Monoxide



Ans: 2


Q. The percentage of carbon in steel is -1) 3 to 5
2) 0.1 to 0.25
3) 0.5 to 1.5
4) 6 to 8



Ans: 3


Q. In photoelectric emission, the energy of emitted electron is -1) same as that of incident photon
2) larger than that of incident photon
3) less than that of incident photon
4) proportional to the intensity of incident light



Ans: 4


Q. The word CNG in the transport network system stands for -1) Chlorine Natural Gas
2) Commercial Natural Gas
3) Compressed Natural Gas
4) Condensed Natural Gas



Ans: 3

Q. Which of the following is responsible for acid rain?1) Nitrogen oxide and Carbon dioxide
2) Nitrogen oxide and Carbon monoxide
3) Sulphur dioxide and Nitrogen oxiede
4) None of the above 


Ans: 3


Q. By which of the following can petrol fire be extinguished?1) Sand
2) Water
3) Carbon dioxide
4) Saw dust


Ans: 3


Q. In view of environmental Problems, the use of which insecticide has been reduced?1) Gammexane
2) D.D.T.
3) B.H.C.
4) D.M.T.


Ans: 2


Q. The main constituent of biogas is -1) Hydrogen
2) Methane
3) Butane
4) Acetylene


Ans: 2

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