Pick out the correct set of statements for HI.
$1 .$ It reduces iodic acid to $I_{2}$
$2 .$ It reduces $H_{2} S O_{4}$ to $S O_{2}$
$3 .$ It decolourises acidified $K M n O_{4}$
$4 .$ It liberates $I_{2}$ with $C u S O_{4}$ solution

Question

Pick out the correct set of statements for HI. 1 . It reduces iodic acid to I 2 2 . It reduces H 2 S O 4 to S O 2 3 . It decolourises acidified K M n O 4 4 . It liberates I 2 with C u S O 4 solution

TestHub · Accepted Answer

Here all statements are correct here regarding HI as follows
$2 K M n O_{4} + 3 H_{2} S O_{4} + 10 H I \to K_{2} S O_{4} + 2 M n S O_{4} + 8 H_{2} O + 5 I_{2}$
$H_{2} S O_{4} + 2 H I \to S O_{2} + I_{2} + 2 H_{2} O$
$H I O_{3} + 5 H I \to 3 I_{2} + 3 H_{2} O$
$2 C u S O_{4} + 4 H I \to 2 C u I_{2} + 2 H_{2} S O_{4}$
$2 C u I_{2} \to C u_{2} I_{2} + I_{2}$

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