Question

solid zinc carbonate dissociates into solid zinc oxide and gas 'G' on heating. the same gas is released when
(1) hydrogen reacts with chlorine
(2) magnesium reacts with hydrochloric acid
(3) lead oxide reacts with carbon
(4) copper oxide reacts with hydrogen​

Answer 1

Explanation:

We cats are going to take over this world meow meow!!solid zinc carbonate dissociates into solid zinc oxide and gas 'G' on heating. the same gas is released when

(1) hydrogen reacts with chlorine

(2) magnesium reacts with hydrochloric acid

(3) lead oxide reacts with carbon

(4) copper oxide reacts with hydrogen

Sorry I don't know

Answer 2

The same gas is released when lead oxide reacts with carbon.

• The zinc dissociates into solid zinc oxide and carbon dioxide gas.

ZnCO3 --> ZnO + CO2

• So, the gas G is obviously carbon dioxide gas. (CO2)
• Now, among the given four reactions, we have to choose a reaction where the carbon and oxygen both are participating. Such reaction is only, the reaction between lead oxide and carbon.
• When lead oxide reacts with carbon -

2PbO + C ----> 2Pb + CO2

• So, the carbon dioxide gas or gas 'G', is produced is the above mentioned reaction between lead oxide and carbon. This particular reaction is also known as the carbon reduction of lead oxide which is used in the metallurgy industry.
• Hence, the correct answer is option 3.