(a) Use your knowledge of stereochemistry of addition of HCI to a double

bond and stereochemical principles and draw the line structures of A & B.

(b) Comment on the number stereoisomers related to A & B.

(c) Draw the line structures of these related stereoisomers. What is the

relationship among the stereoisomers? Number all the stereoisomers for

reference purposes.

(d) Are the two compounds A & B optically active or not? Give reasons for

your answer

(e) Redraw products A & B, number all the carbon atoms and assign the

absolute configuration of each stereogenic centre.

(f) Show by using curved arrows how the intermediate that will eventually

lead to the products of the reaction, will form in the first step of the

mechanism. The complete reaction mechanism is not required.