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QJEEM19Ch84b4: JEE Main 2019 Chemistry - Class 11 JEEM19Ch84b4 Solution: In the following compound, the favourable site/s for…

In the following compound,

JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Basics of Organic Chemistry Question 190 English

the favourable site/s for protonation is/are :

Multiple Choice Options

  • A (b), (c) and (d)
  • B (a) and (e)
  • C (a) and (d)
  • D (a)

Step-by-Step Verified Solution

At (a) position lone pair of N atom is in resonance with π bond so lone pair can't donate easily to H+ ion.

At (b) position N atom is directly connected with double bond so lone pair of N atom don't perticipate in resonance so lone pair can be donated easily to H+ ion.

At (c) position N atom is directly connected with double bond so lone pair of N atom don't perticipate in resonance so lone pair can be donated easily to H+ ion.

At (d) position N atom is directly connected with double bond so lone pair of N atom don't perticipate in resonance so lone pair can be donated easily to H+ ion.

At (e) position lone pair of N atom is in resonance with π bond so lone pair can't donate easily to H+ ion.

∴ (b), (c) and (d) are the favourable sites for protonation.

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