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What is the order of boiling points of the following $\ce{NH3}$, $\ce{PH3}$, $\ce{AsH3}$, $\ce{SbH3}$ and $\ce{BiH3}$?

What I thought was, that as $\ce{H2O}$ has a higher boiling point compared to its group members due to hydrogen bonding, so should nitrogen. And then the order would follow according to the molecular weight. When I wrote this as an answer, it was marked wrong. What is the correct ordering and what is the reason for it?


marked as duplicate by Mithoron, pentavalentcarbon, Tyberius, airhuff, M.A.R. Feb 19 '18 at 12:38

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