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Question

Consider the following reaction:


ZnCl2+NaOHBWhite ppt.NaOH−−−CSoluble

Then, the final product is:

A
Na2ZnO2
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B
Zn(OH)2
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C
ZnO
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D
ZnSO4
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Solution

The correct option is A Na2ZnO2
Salts like ZnCl2,SnCl2,AlCl3, etc. give a white precipitate with NaOH, however, precipitate dissolves in excess of it.

ZnCl2+2NaOHZn(OH)2(White ppt.)BNaOH−−−Na2ZnO2SolubleC

Hence, option A is correct.

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