Question

Which is the most volatile compound.

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

Answer 1

Answer: (B)

$HCl$

Answer 2

Hydride – HF HCl HBr HI

B.pt (in K) – 293 189 206 238

Becouse of having low b.p. HCl is more volatile.