Home
Class 11
CHEMISTRY
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.
Which among the following will be the strongest acid ?

A

I

B

II

C

III

D

IV

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • GENERAL ORGANIC CHEMISTRY II

    RESONANCE|Exercise Exercise-3 Part:I JEE(Advanced)/IIT-JEE Problems (Previous Years)|17 Videos

  • GENERAL ORGANIC CHEMISTRY II

    RESONANCE|Exercise Exercise-3 Part:II JEE(MAIN)/AIEEE PROBLEMS (PREVIOUS YEARS)|18 Videos

  • GENERAL ORGANIC CHEMISTRY II

    RESONANCE|Exercise Part-III: One or More Than One Options Correct Type|9 Videos

  • GASEOUS STATE

    RESONANCE|Exercise PHYSICAL CHMISTRY (Gaseous State)|47 Videos

  • GENERAL ORGANIC CHEMISTRY-I

    RESONANCE|Exercise PART-III : PRACTICE TEST-19|1 Videos

Similar Questions

Explore conceptually related problems

Which aromatic acid among the following is weaker than simple benzoic acid?

Explain why formic acid is stronger acid than benzoic acid although benzoic acid has phenyl group which is - group.

Assertion: Ortho substituted benzoic acids are stronger than benzoic acid. Reason: Ortho substituted tends to prevent coplanartity of -COOH with ring. Thus resonance is diminished which increases acidic strength (ortho effects)

o-hydroxybenzoic acid is less/more acidic than p-hydroxy benzoic acid.

Carboxyl group in benzoic acid is o-and plm director.

Arrange the following acids in order of the increasing acidity: A= o-nitro benzoic acid, B = p-nitro benzoic acid, C= p-hydroxy benzoic acid, D= benzoic acid