22.74 L of CO(2) obtained at NTP by com...

`22.74 L ` of `CO_(2)` obtained at NTP by complete decomposition of 4 mol `CaCO_(3)` sample. Percentage purity of sample is :-

A

`50%`

B

`25%`

C

`75%`

D

`100%`

Verified by Experts

The correct Answer is:

B

`CaCO_(3) to CaO + underset(22.4L at NTP) (CO_(2)uarr)`
4 mol ` =1 mol`
`%` Purity `=1/4 xx100= 25%`

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