AP EAMCET2013ChemistryGeneral Organic Chemistry
Assertion (A) - NH ₂ group of aniline is ortho, para directing in electrophilic substitutions. Reason (R) - NH ₂ group stabilises the arenium ion formed by the ortho, para attack of the electrophile. The correct answer is
Options
- ABoth (A) and (R) are correct, (R) is the correct explanation of (A)
- BBoth ( A ) and ( R ) are correct, ( R ) is not the correct explanation of ( A )
- C(A) is correct, but (R) is not correct
- D(A) is not correct, but (R) is correct
Correct answer
A. Both (A) and (R) are correct, (R) is the correct explanation of (A)
Step-by-step solution
The - NH ₂ group of aniline is a very strong electron donor (+ M effect), hence it activates the benzene ring thoroughly and the electrophilic aromatic substitutions on the benzene ring are very easy to take place at ortho and para-positions.