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Which of the following does not react wi...

Which of the following does not react with aqueous `KMnO_(4)` ?

A

B

`F_(2)C=CF_(2)`

C

D

Text Solution

Verified by Experts

The correct Answer is:
a,b,c
`a` and `c implies` aromatic (delocalisation of `pi bar(e) s)` so they do not give Baeyer's test or decolourisation of `Br_(2)` solution (test of unsaturation).
`b.` Due to `EWG`, four `F` atoms, `bar(e)` density or nucleophilicity around `(C=C)` decreases and the compound does not give test for unsaturation.
`d.` It is an unsaturated compound and gives the test for unsaturation.
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