And both are covalent compounds but is polar whereas is non-polar

CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding

Problem

BF3\text{BF}_3 and NF3\text{NF}_3 both are covalent compounds but NF3\text{NF}_3 is polar whereas BF3\text{BF}_3 is non-polar. This is because : (1) Nitrogen atom is smaller than boron atom (2) N−F\text{N}-\text{F} bond is more polar than B−F\text{B}-\text{F} bond (3) NF3\text{NF}_3 is pyramidal whereas BF3\text{BF}_3 is planar triangular (4) BF3\text{BF}_3 is electron deficient whereas NF3\text{NF}_3 is not

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