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:
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- \(\mathrm{NH_2}\)
- \(\mathrm{N_3H}\)
- \(\mathrm{NH_3}\)
- \(\mathrm{N_2H_4}\)
The Correct Option is D
Solution and Explanation
Mass of H per mole \(=0.125\times32=4\) g, i.e. 4 mol H atoms.
Mass of N \(=32-4=28\) g, i.e. 2 mol N atoms.
Formula \(\mathrm{N_2H_4}\).
Answer: (4) \(\mathrm{N_2H_4}\)
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