`PH_3` is less basic than `NH_3`.

Assertion : NH_(3) is less basic than PH_(3) Reason: Nitrogen is more electronegative than phosphorus.

Assertion (A) : PH_(3) is more basic than NH_(3) Reason (R) : EN of N is more than that of P

Statement-1: NH_(3) is more basic than NF_(3) Statement-2: F is more electronegative than H.

Both PH_(3) and NH_(3) are Lewis bases, but basic strength of PH_(3) is less than that of NH_(3) . Explain