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Ph has lower boiling point than …

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Ph has lower boiling point than nh

Posted by Namira Rais 7 years ago

CBSE > Class 12 > Chemistry

1 answers

Brahmjot Kaur 7 years ago

PH3 has lower boiling point than NH3 because the electronegativity of N is much higher than that of P. So, NH3 undergoes extensive H-bonding and hence, it exists as an associated molecule. To break these additional bonds, the large amount of energy is required while PH3 does not form H-bond and hence, exists as discrete molecule.

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