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Zn+2 dissolves in excess of NaOH due to the formation of 

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By Expert Faculty of Sri Chaitanya
a
Soluble Zn(OH)2
b
Soluble Na2Zn(OH)4
c
Soluble NaZn(OH)3
d
ZnO

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detailed solution

Correct option is B

Zn+2+2NaOH→Na2ZnO2+H2Na2ZnO2+2H2O→Na2Zn(OH)4


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