Chemistry question answer 19th Fab 2017

By: D.K Choudhary
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
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

About D.K Chaudhary

Polityadda the Vision does not only “train” candidates for the Civil Services, it makes them effective members of a Knowledge Community. Polityadda the Vision enrolls candidates possessing the necessary potential to compete at the Civil Services Examination. It organizes them in the form of a fraternity striving to achieve success in the Civil Services Exam. Content Publish By D.K. Chaudhary

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