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Hard Chemistry Questions and Answers for SSC Exam

3 years ago 44.8K Views
Q :  Who proposed first atomic theory ?

(A) E Rutherford

(B) De Broglie

(C) John Dalton

(D) D.I. Mendeleef

Correct Answer : C

Q :  pH of blood is ?

(A) 10.4

(B) 9

(C) 7.4

(D) 4

Correct Answer : C

Q :  pH of water is

(A) 5

(B) 6

(C) 7

(D) 8

Correct Answer : C

Q :  Which one of the following is the softest?

(A) sodium

(B) iron

(C) aluminium

(D) lithium

Correct Answer : A

Q :  Which have the maximum density ?

(A) water

(B) Benzene

(C) Ice

(D) Chloroform

Correct Answer : A

Q :  Which one of the following gas is readily soluble in water at room temperature ?

(A) chlorine

(B) nitrogen

(C) ammonia

(D) carbon dioxide

Correct Answer : D

Q :  Which is also called Stranger Gas ?

(A) Xenon

(B) Neon

(C) Argon

(D) Nitrous oxide

Correct Answer : A

Q :  The chemical used as a fixer in photography is ?

(A) sodium thiosulphate

(B) sodium sulphate

(C) borax

(D) ammonium sulphate

Correct Answer : A

Q :  Water drops are spherical because of ?

(A) viscosity

(B) density

(C) polarity

(D) surface tension

Correct Answer : D

Q :  Aspirin is

(A) acetyl salicylic acid

(B) sodium salicylate

(C) methyl salicylate

(D) ethyl salicylate

Correct Answer : A

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