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Which of the following metals will react...

Which of the following metals will react with NaOH and KOH to liberate hydrogen gas?

A

Zn, Al, Fe and Mg

B

Al, Fe, Mg and Sn

C

Zn, Sn and Al

D

Fe, Mg and Al

Text Solution

Verified by Experts

The correct Answer is:
C
`2Al+2NaOH+2H_(2)O overset(Delta)rarr 2NaAlO_(2)+3H_(2)`
`Sn+2NaOH+H_(2)O overset(Delta)rarr Na_(2)SnO_(3)+2H_(2)`
`Zn+2NaOH overset(Delta)rarr Na_(2)ZnO_(2)+H_(2)`
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