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Byju's Answer
Standard XII
Chemistry
Introduction to Alcohols
What happens ...
Question

What happens when K2Cr2O7 is treated with KI?


A

Chromate is formed

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B

Chromyl chloride is obtained

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C

It liberates I2 from KI

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D

Acetic acid is formed

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Solution

The correct option is C

It liberates I2 from KI


When K2Cr2O7 is treated with KI it liberates I2 from KI.

2K2Cr2O7 + 6KI + 7H2SO4 Cr2(SO4)3 + 4 K2SO4 + 7H2O + 3I 2


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