Question

Trihalides of Nitrogen are lewis bases

Trihalides of P , Sb , As , Bi are lewis acids?



Explain the trend :

i)NF3 < NCl3 < NBr3 < NI3 ..in accordance with Lewis Base Strength

ii) PF3 > PCl3 > PBr3 > PI3 ...in accordance with the Lewis Acid Strength

Answer 1

because N have lone pair