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Q.

Correct match to replace -Cl group with -OH group in the following 

I) 
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A) NaOH,368K/H+
II) 
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B) NaOH, 443/H+
III) 
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C) NaOH, 623K, 320 atm/H+
IV) 
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D) Warm H2O

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a

 

DBCA

b

 

CDBA

c

 

IIIIIIIV
BCDA

d

 

DCAB

answer is C.

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Detailed Solution

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Intermediate is carbanion negative charge delocalizes at ortho & para position. 

 carbanion is stabilized by EWG NO2,CHO....etc

Carbanion is destablized by EDG OCH3,CH3

Greater the number of -NO2 groups at ortho & para position more will be the rate of reactivity towards nucleophilic substitution

-NO2 group at meta position has negligible effect. In fact reactivity of nucleophilic substitution

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