SSC CGL 2015 : CHEMISTRY

1. Who is regarded as father of modern chemistry ?

A.Ruterford

B.Einstein

C.Lavoisier

D.C.V. Raman

2. Which is not a type of elements ?

A.Metals

B.Non Metals

C.Metalloids

D.Gases

3. Rare gases are

A.mono atomic

B.di atomic

C.tri atomic

D.None of above

4. Which one of the following is the softest?

A.sodium

B.iron

C.aluminium

D.lithium

5. Which have the maximum density ?

A.Water

B.Benzene

C.Ice

D.Chloroform

6. Which one of the following gas is readily soluble in water at room temperature ?

A.chlorine

B.nitrogen

C.ammonia

D.carbon dioxide

7. Which is also called Stranger Gas ?

A.Xenon

B.Neon

C.Argon

D.Nitrous oxide

8. Oil of vitriol is 

A.nitric acid

B.sulphuric acid

C.hydrochloric acid

D.phosphoric acid

9. Which is used in preparation of dynamite ?

A.glycerol

B.ethyl alcohol

C.methyl alcohol

D.glycol

10. What is Calcium sulphate ?

A.epsom salt

B.blue vitriol

C.gypsum salt

D.potash alum

ANSWER KEY:
1 - (C)
2 - (D)
3 - (B)
4 - (A)
5 - (A)
6 - (D)
7 - (A)
8 - (B)
9 - (A)
10- (C)