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Which of the following dissolves in hot ...

Which of the following dissolves in hot concentrated NaOH solution?

A

Fe

B

Zn

C

Cu

D

Ag

Text Solution

Verified by Experts

The correct Answer is:
B
Only zinc dissolves due to the formation of sodium zincate.
`Zn+2NaOHoverset(Delta)toNa_2ZnO_2+H_2uarr`
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