Q.1. The total number of cyclic structural as well as stereo isomers possible for a compound with the molecular formula C5H10 is
Solution. The seven possible cyclic structural and stereoisomers are
Q. 2. The total number of cyclic isomers possible for a hydrocarbon with the molecular formula C4H6 is 5.
Solution. The number of cyclic isomers for a hydr ocarbon with molecular formula C4H6 is 5.
The structures are
Q. 3. The maximum number of isomers (including stereoisomers) that are possible on monochlorination of the following compound is
Enantiomeric pair = 2
Two enantiomeric pairs = 4
Total = 2 + 4 + 1 + 1 = 8
Q. 4. The total number of contributing structures showing hyperconjugation (involving C-H bonds) for the following carbocation is
a = 3 Hyperconjugative H's
b = 2 Hyperconjugative H's
c = 1 Hyperconjugative H
Q. 5. The total number(s) of stable conformers with non-zero dipole moment for the following compound is (are)
Following three conformers (with μ ≠ 0) are possible
Q. 6. The total number of stereoisomers that can exist for M is
Solution. The molecule cannot show geometrical isomerism, so only its mirror image will be the other stereoisomer.