JEE MAIN - Chemistry (2019 - 10th April Morning Slot - No. 2)
The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reactions is :
_10th_April_Morning_Slot_en_2_2.png)
III < II < I
III < I < II
II < I < III
I < III < II
Explanation
CH3 group increases
the electron density of benzene by +I effect and hyper
conjugation effects and hence makes the
compound more reactive towards electrophilic aromatic substitution reaction.
Cl group decreases the electron density of benzene by –I effect.
COCH3 group strongly decreases the electron density of benzene by –I and –R effects.
$$ \therefore $$ Correct increasing order is_10th_April_Morning_Slot_en_2_4.png)
Cl group decreases the electron density of benzene by –I effect.
COCH3 group strongly decreases the electron density of benzene by –I and –R effects.
$$ \therefore $$ Correct increasing order is
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