Carbene intermediates are produced by the photolysis of diazomethane `(CH_2N_2)` or kenene `(CH_2 = C = O)`. They are also produced by the reaction of `CHX_3` with base or by Simmons-Smith reaction. There are two types of carbenes, singlet and triplet. They are so called due to their spin state. In which reaction, the insertion of methylene increases potential energy ?A. `CH_(2) = CH_(2) +:CH_(2) rarr CH_(3) - CH =CH_(2)`B. C. `Me-Ch=CH_(2)+ :CH_(2) rarr Me-CH=CH-CH_(3)`D.

Carbene intermediates are produced by the photolysis of diazomethane `

1.	Carbene intermediates are produced by the photolysis of diazomethane `(CH_2N_2)` or kenene `(CH_2 = C = O)`. They are also produced by the reaction of `CHX_3` with base or by Simmons-Smith reaction. There are two types of carbenes, singlet and triplet. They are so called due to their spin state. In which reaction, the insertion of methylene increases potential energy ?A. `CH_(2) = CH_(2) +:CH_(2) rarr CH_(3) - CH =CH_(2)`B. C. `Me-Ch=CH_(2)+ :CH_(2) rarr Me-CH=CH-CH_(3)`D.
Answer» Correct Answer - B (b) Due to ring strain in cyclopropane

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