The order of activites of the various ortho and para director is:

- O^{-} > - O H > - O C O C H_{3} > - C O C H_{3}

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- O H > - O^{-} > - O C O C H_{3} > - C O C H_{3}

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- O H > - O^{-} > - C O C H_{3} > - O C O C H_{3}

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- O^{-} > - C O C H_{3} > - O C O C H_{3} > - O H

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Solution

The correct option is B $- O^{-} > - O H > - O C O C H_{3} > - C O C H_{3}$
The correct order of $+ M / + R$ effect is:
$- O^{-} > - O H > - O C O C H_{3} > - C O C H_{3}$
These groups activate the ring at ortho and para positions for the electrophilic attack based on their electron-donating nature.
Hence option A is correct.

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Similar questions

Q. Identify electron-donating groups in resonance among the following:(A)

- C O {N H}_{2}

(B)

- {N O}_{2}

(C)

- O C O {C H}_{3}

(D)

- C O {C H}_{3}

(E)

- C H O

(F)

- N H C O {C H}_{3}

Q. Out of the following how many groups are meta directing on electrophilic substitution of benzene?

- C O O H, - C N, - N H_{2} - C O C H_{3}, - N H C O C H_{3}, - O H, - C H O, - S O_{3} H, - C l, - N O_{2}

Arrange in increasing order of basicity,

$H_{2} O, O H^{-}, C H_{3} O H, C H_{3} O^{-}$

Q. Saponification (basic hydrolysis)

C_{6} H_{5} O | | C O C H_{3}

will yeild :

Which of the following is not correct?

$O r d e r o f b a s i c i t y O r d e r o f n u c l e o p h i l i c i t y (a) F^{-} > C l^{-} > B r^{-} B r_{-} > C l^{-} > F^{-} (b) H - O - O^{-} > O H^{-} H - O - O^{-} > O H^{-} (c) C H_{3} > N H_{2}^{-} > O H - C H_{3} > N H_{2}^{-} > O H^{-} (d) H_{2} O > H_{2} S H_{2} O < H_{2} S$

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The order of activites of the various ortho and para director is:

The correct option is B −O−>−OH>−OCOCH3>−COCH3The correct order of +M/+R effect is:−O−>−OH>−OCOCH3>−COCH3These groups activate the ring at ortho and para positions for the electrophilic attack based on their electron-donating nature.Hence option A is correct.