10.9 Identify A, B, C, D, E, R and R1 in the following:
1st reaction :- A is cyclohexylmagnesium and B is Cyclohexane
2nd reaction :- C is isopropylmagnesium bromide
and compound R-Br is 2-bromopropane
3rd reaction :- Compound R1 , D, and E is given in the reaction