Assuming ideal gas behaviour, the ratio of density of ammonia to that of hydrogen chloride at same temperature and pressure is : (Atomic wt. of Cl = 35.5 u)
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- 1.46
- 0.46
- 1.64
- 0.64
The Correct Option is B
Solution and Explanation
At the same T and P, \(d \propto M\).
Molar mass of \(\mathrm{NH_3}\) = 14 + 3 = 17 g/mol.
Molar mass of \(\mathrm{HCl}\) = 1 + 35.5 = 36.5 g/mol.
\(\frac{d_{NH_3}}{d_{HCl}} = \frac{17}{36.5} \approx 0.466 \approx 0.46\).
Answer: (2) 0.46
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