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.
Which carbene is produced in the following reactions ?
.

Options

A. `:C ClBr`
B. `:CBrI`
C. `:C Cl I`
D. All

Answer

A

Explanation

(a) Weak bond `(C-I)` breaks to give `( : C BrC1)`