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

`2 : 3`

Text Solution

Verified by Experts

The correct Answer is:

A

`Zn + H_2SO_4 to ZnSO_4 + H_2 uarr`
`Zn + 2NaOH + to Na_2ZnO_2 + H_2 uarr`
Hence, ratio of volumes of hydrogen evolved is 1 : 1.

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