P-Block Elements Ques 286

Question: Which has the lowest boiling point

[CBSE PMT 1989]

Options:

A) NH3

B) PH3

C) AsH3

D) SbH3

Show Answer

Answer:

Correct Answer: B

Solution:

Hydride NH3 PH3 AsH3 SbH3 BiH3
Boling point 238.5 185.5 210.6 254.6 290


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