Polytechnic TRB Chemistry Model Question Paper with Answer Keys - 2

Question: 6

The main component in natural gas is

(A) Methane

(B) Ethane

(C) Ether

(D) Butane

Question: 7

Which of the following has least penetrating power?

(A) Alpha particles

(B) Beta particles

(C) Gamma particles

(D) All have same power

Question: 8

The colouring agent used in the preparation of brown coloured glass is

(A) Cobalt oxide

(B) Chromic oxide

(C) Manganese dioxide

(D) Ferric oxide

Question: 9

Which of the following is used in aerated drinks?

(A) Calcium carbonate

(B) Sodium bicarbonate

(C) Sodium carbonate

(D) Potassium carbonate

Question: 10

Cobalt (60) isotope is used in the treatment of

(A) Heart diseases

(B) Cancer

(C) Diabetes

(D) Skin diseases