Find total number of stereoisomers for each compound given below :
(1) `Ph - overset(O)overset(||)(S) - CH = CH - CH_2 - CH = C = C = CH – CH = CH – CH_3`

Answer

(1) 16 (2) 4 (3) 16 (4) 4 (5) 4 (6) 4 (7) 4 (8) 3 (9) 4 (10) 4 (11) 2

Explanation

(1) `2^4 implies 16, (2) 2^2 implies 4, (3) 2^4 = 16`(n = 4 =stereogenic centre)
(4) `2^2 implies 4` (molecule unsymmetrical), (5) `2^2 implies 4`
(6) `2^2 = 4`(molecule unsymmetrical), (7) `2^2 = 4`
(8) S.I `implies 3` (molecule symmetrical)
(9)