1. Tardigrade
  2. Question
  3. Chemistry
  4. Amongst NH3, PH3, AsH3 and SbH3 the one with highest boiling point is:

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Q. Amongst $NH_3, PH_3, AsH_3$ and $SbH_3$ the one with highest boiling point is:

Chemical Bonding and Molecular Structure

Solution:

As molecular weight increases, magnitude of Van der Waal’s force of attraction increases. Therefore, boiling point increases. Though $NH_3$ has strong $H$-bonding but boiling point of $SbH_3$ is highest due to highest molecular