Question

Identify A and B in the following reaction:

`CH_3-Br+Mg"dry ether"/""A+CO_2"dry ether"/(H^+/(H_2O))B+Mg(Br)OH`

Answer 1

`CH_3-Br+Mg"dry ether"/""CH_3-MgBr`

Methyl bromide                      Methyl magnesium
                                                    bromide (A)

A- CH₃MgBr (Methyl magnesium bromide) 
B - CH₃COOH (Acetic acid)