Question:
Why does NH₃form hydrogen bond but PH₃does not?

Answer:

Nitrogen is highly electronegative as compared to phosphorus. This causes a greater attraction of electrons towards nitrogen in NH₃ than towards phosphorus in PH₃. Hence, the extent of hydrogen bonding in PH₃ is very less as compared to NH₃.

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Why does NH₃form hydrogen bond but PH₃does not?

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Question: Why does NH3 form hydrogen bond but PH3 does not?

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Question:
Why does NH₃form hydrogen bond but PH₃does not?