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Same amount of electric current is passe...

Same amount of electric current is passed through the solutions of `AgNO_3` and HCI. If 1.08 g of silver is obtained from `AgNO_3` solution. The amount of hydrogen liberted at STP will be

A

`112cm^(3)`

B

`22400cm^(3)`

C

`224cm^(3)`

D

`1.008g`.

Text Solution

Verified by Experts

The correct Answer is:
A
`("Mass of Ag")/("Mass of " H_(2))=("Eq. mass of Ag")/("Eq. mass of " H_(2))`
`(1.08)/("mass of" H_(2))=(108)/(1)`
Mass of `H_(2)=( 1.08)/(108)=10^(-2)g`
2g of `H_(2)` at S.T.P. occupy 22400 `cm^(3)`
`therefore10^(-2)g` of `H_(2)` at STP occupy
`=(22 400)/(2)xx10^(-2)10^(-2)cm^(3)=112cm^(3)`
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