AP EAMCET · Chemistry · Hydrocarbons

Identify the ortho and para directing groups towards aromatic electrophilic substitution reactions from the following list

$- OH$ $- CN$ $- {CO}_{2} H$ $- {OCH}_{3}$ $- {NHCOCH}_{3}$ $- CHO$

I II III IV V VI

A $I, IV, V$
B $II, III, VI$
C $I, II, IV$
D $IV, V, VI$

Verified Solution

Answer & Solution

Correct Answer

(A) $I, IV, V$

Step-by-step Solution

Detailed explanation

Electron donating groups via +M or +H effect, in aromatic ring are called ortho/para directing groups or activating groups. Because these group increase the electron density at ortho and para position so, attacking electrophile attacks on these positions mainly. Among…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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$- OH$	$- CN$	$- {CO}_{2} H$	$- {OCH}_{3}$	$- {NHCOCH}_{3}$	$- CHO$
I	II	III	IV	V	VI

Identify the ortho and para directing groups towards aromatic electrophilic substitution reactions from the following list -OH -CN -CO2H -OCH3 -NHCOCH3 -CHO I II III IV V VI

Step-by-step Solution

Identify the ortho and para directing groups towards aromatic electrophilic substitution reactions from the following list

$- OH$ $- CN$ $- {CO}_{2} H$ $- {OCH}_{3}$ $- {NHCOCH}_{3}$ $- CHO$

I II III IV V VI