KI when heated with conc. H 2 S O 4 , it forms

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Question: Answered & Verified by Expert

KI when heated with conc.

H_{2} S O_{4}

, it forms

Chemistryp Block Elements (Group 15, 16, 17 & 18)NEET

Options:

A $H I O_{3}$
B $K I O_{3}$
C $I_{2}$
D $H I$

Solution:

1010 Upvotes Verified Answer

The correct answer is:

I_{2}

HI is obtained by the reaction of KI with conc.

H_{2} S O_{4}

, is further oxidized by

H_{2} S O_{4}

, because HI is strong reducing agent.

2 K I + H_{2} S O_{4} \to K_{2} S O_{4} + 2 H I

2 H I + H_{2} S O_{4} \to I_{2} + S O_{2} + 2 H_{2} O

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