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MolSynapse / Question bank / p-Block Elements: Groups 17 and 18 / Halogen compounds: HX, oxoacids, bleaching powder

NEET levelSingle correct optionDifficulty 1 of 3ph006

Which hydrogen halide is the strongest acid in aqueous solution?

A $HCl$
B $HBr$
C $HI$
D $HF$

Answer: C

Acid strength in water increases as the H-X bond becomes longer and weaker down the group. Hence

HI

is the strongest and

HF

the weakest.

Practice p-Block Elements: Groups 17 and 18 More on Halogen compounds: HX, oxoacids, bleaching powder

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