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When the same amount of zinc is treated ...

When the same amount of zinc is treated separately with excess of sulphric acid and excess of sodium hydroxide, the ratio of volume of hydrogen evolved is

A

`1:1`

B

`1:2`

C

`2:1`

D

`9:4`

Text Solution

Verified by Experts

The correct Answer is:
A
`Zn + H_2SO_4 rarr ZnSO_4 + H_2`
`Zn + 2NaOH rarr Na_2ZnO_2 + H_2`
`:.` Ratio of volumes of `H_2` evolved is 1 : 1.
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