What is the increasing order of basic strength? I: Aniline (NH2 attached to benzene) II: o-toluidine (NH2 and CH3 at ortho positions on benzene) III: 2,6-dimethylaniline (NH2 with CH3 at both ortho po

Question

What is the increasing order of basic strength?

I: Aniline (NH2 attached to benzene)
II: o-toluidine (NH2 and CH3 at ortho positions on benzene)
III: 2,6-dimethylaniline (NH2 with CH3 at both ortho positions on benzene)
IV: p-toluidine (NH2 at para position to CH3 on benzene)

Prashant Kotian · Accepted Answer

Correct answer: D. Basic strength of II and III decreases due to ortho effect.

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