NEET Chemistry The p-Block Elements (XII) Questions Solved


The ionic character of H-X is highest in

(A) HBr

(B) HI

(C) HF

(D)HCl

The ionic charcter is expected to increase as the electronegativity of the halogen increases. Thus due to the highest electronegativity difference in H and F, the H-F bond should be most ionic. But H-I bond being the weakest gives the hydrogen readily. HI is also the strongest acid because of its least bond dissociation energy.The ionic charcter thus follows the order HI>HBr>HCl>HF.

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