PG TRB Model Question Paper for Chemistry with Answer - 5

Question: 21

Most of the non metals are found in

(A) in combined state as compounds

(B) in free state

(C) as solids

(D) in liquid state

Question: 22

The colour of ferrous hydroxide precipitate is

(A) Brown

(B) Blue

(C) White

(D) Dirty green

Question: 23

Which of the following is used in car batteries?

(A) Ammonia

(B) Sulphuric acid

(C) Hydrogen

(D) Sulphur

Question: 24

Which one of the following is responsible for blue baby syndrome?

(A) Fluoride

(B) Nitrate

(C) Arsenic

(D) Lead

Question: 25

An example for emulsion is

(A) Milk

(B) Sponge

(C) Paint

(D) Mist