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Which of the following metal gives hydro...

Which of the following metal gives hydrogen gas, when heated with hot concentrated alkali

A

`Cu`

B

`Ag`

C

`Zn`

D

`Ni`

Text Solution

Verified by Experts

The correct Answer is:
C
`Zn+underset("Conc.")(NaOH)rarrunderset("Sodium zincate")(Na_(2)ZnO_(2))+underset("Hydrogen")(H_(2))`
Thus in this reaction hydrogen gas is produced when zinc is treated with concentrated `NaOH.`
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