PG TRB Previous Year Question Paper with Answer - 3

Question: 11

The colouring matter in the process of bleaching of textiles by the use of bleaching powder gets

(A) absorbed

(B) displaced

(C) reduced

(D) oxidised

Ans: D

oxidised

Question: 12

The soft smooth feel of the skin with after-shave lotion is due to

(A) ethylene glycol

(B) diethylphthalate

(C) alcohol

(D) none of these

Ans: C

alcohol

Question: 13

The best quality of coal with least ash content is

(A) anthracite

(B) bituminous

(C) peat

(D) lignite

Ans: A

anthracite

Question: 14

Electrolytes are

(A) acids and bases only

(B) acids and salts only

(C) acids, bases and salts

(D) bases and salts only

Ans: C

acids, bases and salts

Question: 15

Water does not boil at

(A) 273 K

(B) 80°R

(C) 100°C

(D) 212°F

Ans: A

273 K

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