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Binary Acids

17. Acid and Base Equilibrium / Binary Acids / Problem 5

HI is a strong acid. Determine whether this statement is correct or incorrect. Justify your answer.

A

Incorrect; Due to the large atomic radius of iodine, the H−I bond is weak. Stronger acids have stronger bonds.

B

Correct; Due to the large atomic radius of iodine, the H−I bond is weak, leading to high acidity.

C

Incorrect; Due to a strong H−I bond, the dissociation is low.

D

Correct; The H−I bond is ionic, leading to high acidity.

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