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Hydrogen — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrogen1 Mark
Question
Why $\mathrm{NH}_3$ has a higher boiling point than $\mathrm{PH}_3$​​​​​​​?
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Answer

$\mathrm{NH}_3$ is associated with intermolecular H -bonding, $\mathrm{PH}_3$ is not associated with intermolecular H -bonding. ' $N$ ' is more electron negative and smaller in size than ' P '.

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