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CBSE Class 11-science Answered

Q)
Asked by araima2001 | 07 Apr, 2017, 04:51: AM
answered-by-expert Expert Answer
The correct option is (B).
 
Meta-xylene is the most stable isomer among all the three xylene isomers. The reason is,
  • In m-carbonium ion, the two methyl groups in one of the canonical structures of m-xylene is capable of partially neutralizing the positive charges on the ring carbon atoms. 
  • In the other two isomers only one methyl group can act in this way.
  • Hence the m-carbonium ion will be more stable than the other two.
Answered by Prachi Sawant | 07 Apr, 2017, 10:35: AM

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