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Baeyer's reagent is:...

Baeyer's reagent is:

A

Alkaline `KMnO_(4)`

B

Acidic `K_(2)Cr_(2)O_(7)`

C

Alkaline `Na_(2)Cr_(2)O_(7)`

D

`MnO_(2)`

Text Solution

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The correct Answer is:
A
Alk . `KMnO_(4)` is called Baeyer's reagent and is used to test unsturation in an organic compound, when it decolorises `KMnO_(4)`.
`CH_(2) = CH_(2) + ubrace(H_(2)O+O)_(Alk KMnO_(4)) rarr underset(OH)(C ) H_(2)- underset(OH)underset(|)(C )H_(2)`
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