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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3cb165

Which of the following statements about bond polarity and ionic character is/are correct?

APercent ionic character generally increases with increasing electronegativity difference
BFor a bond of length $d$ , a hypothetical 100% ionic bond would have $μ = e d$
CHI has a larger dipole moment than HF
DA bond between two identical atoms has zero bond dipole

Answer: A, B, D

(A), (B) and (D) are standard. (C) is false: HF (1.91 D) has a much larger dipole moment than HI (about 0.4 D) because fluorine is far more electronegative.

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