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  4. How many groups are ortho/para director in the electrophilic aromatic substitution? <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-fknskqkc4hvr7nrc.png />

Q. How many groups are ortho/para director in the electrophilic aromatic substitution?

Question

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Answer: 5

Solution:

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 positions.
Solution
The following groups are meta directing groups.
Solution
The following groups can acts as both ortho/para directing and meta directing groups due to the presence of pi bond and lone pair of electrons on the nitrogen attached aromatic ring.
Solution
Hence, totally 5 groups can acts as ortho/para directing groups among the nine groups.