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5g of zine is treated separated with an ...

5g of zine is treated separated with an excess of
(a) dilute hydrochloric acid and
(b) aqueous sodium hydroxide .
The ratio of the volumes of `H_(2)` evolved in these two reactions is :

A

`1 : 1`

B

`1 : 2`

C

`2 : 1`

D

`9 : 4`

Text Solution

Verified by Experts

The correct Answer is:
A
In both cases, the same volume of hydrogen is evolved for the same amount of zinc reacted.
`Zn + H_(2)SO_(4) rarr ZnSO_(4) + uarr`
`Zn + NaOH rarr Na_(2) ZnO_(2) + H_(2) uarr`
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