JEE Advanced Chemistry question

Dipole moment and ionization constant are maximum in case of

(A)HF, HF
(B)HF, HICorrect
(C)HI, HF
(D)HI, HI

Answer: (B)

Solution

Dipole moment among the hydrogen halides is maximum for HF, because fluorine's very high electronegativity gives the H–F bond the greatest charge separation despite its short bond length. The ionisation constant (acid strength in water), however, is maximum for HI,

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Question ID VK-159392