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When ethanol reacts with acidified K2Cr2...

When ethanol reacts with acidified `K_2Cr_2O_7` , the orange color of `K_2Cr_2O_7` changes to ______

A

yellow

B

red

C

purple

D

green

Text Solution

Verified by Experts

The correct Answer is:
D
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Ethanol is reduced to ethanoic acid when treated with acidified K_2Cr_2O_7 .

Compound of molecular formula C_(7)H_(8)O is a sweet smelling liquid. A on reaction with acidified K_(2)Cr_(2)O_(7) gives compound B of molecular formula C_(7)H_(8)O . B reduces Tollen's reagent A and B are respectively.

The oxidation number of Cr in Cr_(2)O_(7)^(2-) is _________ .