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5 g of zinc is treated separately with a...

5 g of zinc is treated separately 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

`1:2`

B

`2:1`

C

`1:4`

D

`1:1`

Text Solution

Verified by Experts

The correct Answer is:
D
`Zn + 2NaOH to Na_(2)ZnO_(2) + H_(2)`
`Zn + 2HCl to ZnCl_(2) + H_(2)`
According to stoichiometry in both the reactions, equal number of moles of `H_2` are evolved.
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