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Ortho effect is special type of effect t...

Ortho effect is special type of effect that is shown by o-subsituents .This ortho-effect operates at the benzoic acids irrespective of the polar type. Nearly all o-substituted benzoic acid are stronger than benzoic acid. Benzoic acid is a resonance stabilised and so the carboxyl group is coplaner with the ring. An o-subsituent tends to prevent this coplanarity.
What is the order of `K_(a)` of following compounds ?

A

`I gt II gt III gt IV gt V`

B

`II gt I gt III gt IV gt V`

C

`V gt VI gt III gt I gt II`

D

`III gt II gt I gt V gt IV`

Text Solution

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The correct Answer is:
A
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