1.

Assertion (A) : Metallic zinc is used in galvanising metals such as iron and steel. Reason (R ) : Zinc is also used to produce die castings.

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 :B


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