STANDARDChemistry-Hydrides
STANDARD Chemistry Boiling Points MCQ Question
Type: MCQ-conceptual-Medium
The decreasing order of boiling points of the following hydrides is
A
SbH₃ > AsH₃ > PH₃ > NH₃
B
NH₃ > SbH₃ > AsH₃ > PH₃
C
SbH₃ > NH₃ > AsH₃ > PH₃
D
PH₃ > AsH₃ > SbH₃ > NH₃
Correct Answer
Option C
Detailed Explanation
The boiling points decrease in the order: SbH₃ > NH₃ > AsH₃ > PH₃ due to increasing molecular weight and hydrogen bonding in NH₃.
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