Hyperconjugation involves the overlap of the following orbitals:
1. σ - σ
2. σ - p
3. p - p
4. π - π
The IUPAC name of the compound shown below is:
1. 2-bromo-6-chlorocyclohex-1-ene
2. 6-bromo-6-chlorocyclohexene
3. 3-bromo-1-chlorocyclohex-1-ene
4. 1-bromo-3-chlorocyclohexene
Which of the following structures are superimposable?
(1)
(2)
(3)
(4)
(1) 1 and 2
(2) 2 and 3
(3) 1 and 4
(4) 1 and 3
The production of an optically active compound from a symmetric molecule without resolution in termed as:
(1) Walden inversion
(2) partial racemisation
(3) asymmetric synthesis
(4) partial resolution
Buta-1,3-diene and But-2-yne are:
1. Position isomers
2. Functional isomers
3. Chain isomers
4. Tautomers
The number of different substitution products possible when ethane is allowed to react with Chlorine in sunlight are:
(1) 9
(2) 6
(3) 8
(4) 5
In butane, which of the following forms has the lowest energy?
(1) Gauche form
(2) Eclipsed form
(3) Staggered form
(4) None of these
The pair of structures given below represent-
1. | Enantiomers | 2. | Position isomers |
3. | Conformers | 4. | None of the above |
In the following carbocations, the most stabile carbocation:
(1) RCH2C+H3
(2)
(3)
(4)
The number of optical isomers of pent-3-en-2-ol is:
1. 2
2. 4
3. 8
4. 16