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Question

Zinc reacts with hot and concentrated NaOH and forms:

A
Zn(OH)2+Na2O
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B
ZnO
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C
O2
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D
H2
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Solution

The correct option is D H2
Zinc reacts with hot and concentrated NaOH and forms H2.

Zn+2NaOHNa2ZnO2+H2

Hence, option D is correct.

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