Question

Assertion:- Statue of liberty in USA turned green because it is made up of copper.

Reason:- Copper gets tarnished and forms a green layer when exposed to the atmosphere.

• A. Assertion:- False Reason:- False
• B. Assertion:- True Reason:- False Reason is not the correct explanation of assertion.
• C. Assertion:- True Reason:- True Reason is the correct explanation of assertion
• D. Assertion:- False Reason:- True

Answer 1

The correct option is C

Assertion:- True

Reason:- True

Reason is the correct explanation of assertion

Statue of liberty in USA is made up of copper. When exposed to the atmosphere, copper reacts with oxygen and forms copper oxide. The reaction occurs as follows:

$2\text{Cu (s)}+{\text{O}}_2\text{(g)}\to 2\text{CuO (s)}$

This on reaction with carbon dioxide and water forms a greenish layer of basic copper carbonate. The reaction occurs as follows:

$2\text{CuO (s)}+{\text{H}}_2\text{O (l)}+{\text{CO}}_2\text{(g)}\to {\text{CuCO}}_3.{\text{Cu(OH)}}_2$