Question

Assertion (A): Metals in the middle of activity series are found in nature as sulphides or carbonates.

Reason (R): The sulphide ores are calcinated whereas carbonate ores are roasted to extract metals from them.

विकल्प

• Both (A) and (R) are true and (R) is the correct explanation of (A).

• Both (A) and (R) are true, but (R) is not the correct explanation of (A).

• (A) is true, but (R) is false.

• (A) is false, but (R) is true.

Answer 1

(A) is true, but (R) is false.

Explanation:

Metals in the centre of the activity series occur naturally as sulphides or carbonates. Metals in the centre of the activity range are moderately reactive and naturally form sulphides or carbonates.