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The correct order of decreasing value of...


The correct order of decreasing value of ` K _(eq)` is :

A

`agt b gt cgt d`

B

`d gt a gt b gt c`

C

`d gt b gt a gt c`

D

`d gt a gt c gt d`

Text Solution

Verified by Experts

The correct Answer is:
B
Rate of addition to be reduced by electron - donating R groups and enhanced by electgron - withdrawing ones

Because of potential colombic repulsion between the approaching nucleophlic and the high electron density at the carbonyl oxygen atmos
`{:(,CH_(3)CHO,"very large"),(,C_(6)H_(5)CHO,210),(,CH_(3)COCH_(2)CH_(3),38),(,C_(6)H_(5)COCH_(3),0.8`):}
Highiy hinderrd ketones , such as `Me_(3)C COCMe_(3)`, may not react at all except possibly with very small, highly reactive nucleophiles.
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