P-Block Elements Ques 97

Question: Which is the most volatile compound

[CPMT 1979; AIIMS 1980; DPMT 1982; Kurukshetra CEE 1998; J & K CET 2005; DPMT 2002]

Options:

A) $ HF $

B) $ HCl $

C) $ HBr $

D) $ HI $

Show Answer

Answer:

Correct Answer: B

Solution:

Hydride - HF HCl HBr HI
B.pt (in K) - 293 189 206 238

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



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