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A gaseous compound of nitrogen and hydro...

A gaseous compound of nitrogen and hydrogen contains 12.5% (by mass) of hydrogen. The density of the compound relative to hydrogen is 16. The molecular formula of the compound is

A

`NH _(2)`

B

`N_(2)H`

C

`NH_(3)`

D

`N_(2)H_(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
In an unknown compound containing N and H , percentage of `H = 12.5 %`
`therefore` percentage of `N = 100 - 12. 5 = 87.5%`

Molecular formula `= n xx` expirical formula mass, `n = (32)/(16) = 2`
`therefore ` Molecular formula of the compound will be `= ( NH _(2) _(2) = N _(2) H _(4)`
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