1.

Why NH3 is less basic than PH, ?

Answer»

This is because of the electronegitivity and size difference in the elements N and P. N has a higher electronegitivity and pulls the electrons in the N-H bonds toward itself, creating amorepolar bondthanthe P-H bond. N issmaller thanP thus it is a better lewis base, being able to formmorestable sigma bonds.

please pic is clearly



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