How many groups are ortho/para director in the electrophilic aromatic substitution? (i) - N H 2 (ii) - C O H (iii) - N = O (iv) - C O O H (v) - E t (vi) - N = N H 2 (vii) - S O 3 H (viii) (xi)

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Electrophile attack where the electron density high.which shows +M or +I effects are ortho/para directing because they increase electron density at ortho and para +M - N • • H 2 , - N • • = O , , , The following groups are meta directing , , - O M e , S O 3 H They decreases electron density at ortho/para so, electrophile attack at meta position.

How many groups are ortho/para director in the electrophilic aromatic substitution? (i) - N H 2 (ii) - C O H (iii) - N = O (iv) - C O O H (v) - E t (vi) - N = N H 2 (vii) - S O 3 H (viii) (xi)

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