Question

$25\,g$ of each of the following gases are taken at $27^\circ C$ and $600\, mm$ pressure. Which of these will have the least volume?

• A. $HBr$
• B. $HCl$
• C. $HF$
• D. $HI$

Answer 1

Answer: (D)

$HI$

Answer 2

HI has the least number of moles. Therefore, volume occupied is least.