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JEE Main levelSingle correct optionDifficulty 2 of 3ph063

Complete hydrolysis of $IF X_{7}$ with water gives

A $I X_{2}$ , $HF$ and $O X_{2}$
B $HIO X_{3}$ and $HF$
C $H X_{5} IO X_{6}$ and $HF$
D $HIO$ and $HF$

Answer: C

IF X_{7} + 6 H X_{2} O H X_{5} IO X_{6} + 7 HF

. Iodine remains in the +7 state (no redox change), so the oxyacid formed is orthoperiodic acid,

H X_{5} IO X_{6}

, along with hydrofluoric acid.

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