1.

Assertion : When a solutionof Na_(2)ZnO_(2) is acidified withdilute HCI and reactedwith H_(2)S a precipitate of ZnS is formed Reasion :Na_(2)ZnO_(2) is decomposed by HCI to give Zn^(2+) ions.

Answer»

If both (A) and (B) are correct and (R ) is the correct explqanation of (A)
If both (A) and (B) are correct but (R ) is not the correct explqanation of (A)
If (A) is correct ,but (R ) is incorrect
If (A) is incorrect ,but (R ) is correct

Solution :Correctassertion (A)
`Na_(2)ZnO_(2) `+ `H_(2)S` rarr `overset(ZnS)underset((WHITE))` + `2NAOH`
`NaZnO_(2)` is not acidifiedbeforepassing `H_(2)S`


Discussion

No Comment Found

Related InterviewSolutions