[MP PET/PMT 1988]
A) $ HI $
B) $ I_2 $
C) $ HIO_3 $
D) $ KIO_3 $
Correct Answer: B
$ KI+H_2SO_4\xrightarrow{\Delta }KHSO_4+HI $ $ H_2SO_4+2HI\to \ 2H_2O+\underset{\text{Violet vapour}}{\mathop{I_2+SO_2\uparrow }} $
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