1.

Assertion (A) : Roasting process is involved in the metallurgy of Cu from malachite ore. Reason (R ) : Roasting is the process of heating the ore in the absence of air.

Answer»

Both (A) and (R ) are TRUE and (R ) is the CORRECT EXPLANATION of (A).
Both (A) and (R ) are true and (R ) is not the correct explanation of (A).
(A) true but (R ) false.
Both (A) and (R ) are false.

Answer :D


Discussion

No Comment Found