1.

Assertion: When a solution of Na_(2)ZnO_(2) is acidified with dilute HCl and treated with H_(2)S, a precipitate of ZnS is formed. Reason: Na_(2)ZnO_(2) is decomposed by HCl to give Zn^(2+) ions.

Answer»

If assertion is true but the REASON is FALSE
If assertion is false but reason is true
If both assertion and reason are true and reason is the correct explanation of assertion
If OTH assertion and reason are true but reason is not the correct explanation of assertion

Answer :B


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