The C – H bond and C – C bond in ethane are formed by overlapping of -
1.
2.
3. sp – sp and sp – sp
4. p–s and p – p
An organic molecule necessarily shows optical activity if it:
1. Contains asymmetric carbon atoms
2. Is non-planar
3. Is non-superimposable on its mirror image
4. Is superimposable on its mirror image
The compound that has least hindered rotation around carbon-carbon bond is-
1. | Ethane | 2. | Ethylene |
3. | Acetylene | 4. | Hexachloroethane |
A compound having the highest boiling point among the following is -
1. | Iso-octane | 2. | n-Octane |
3. | 2,2,3,3-Tetramethyl butane | 4. | n-Butane |
[A] and [B] in the mentioned reaction are respectively:
1. Alc. KOH and
2. and Lindlar catalyst
3. and alcoholic KOH
4. Lindlar catalyst and
Acidic hydrogen present among the following compound is -
1. Ethyne
2. Ethene
3. Benzene
4. Ethane
Which of the following compounds is insoluble even in hot concentrated H2SO4?
1. Aniline
2. Benzene
3. Ethylene
4. Hexane
Anti-Markovnikov’s addition of HBr is not observed in-
1. | Propene | 2. | But-1-ene |
3. | But-2-ene | 4. | Pent-2-ene |
Baeyer's reagent is:
1. Acidified permanganate solution
2. Alkaline permanganate solution
3. Neutral permanganate solution
4. Aqueous bromine solution
Consider the following reaction,
The structure of the major reaction intermediate formed in the above reaction is-
1. | \(H_{3} C - \underset{\underset{D}{\left|\right.}}{C} H - \underset{\underset{CH_{3}}{\left|\right.}}{C} H - \overset{\circ}{C} H_{2}\) | 2. | \(H_{3} C - \underset{\underset{D}{\left|\right.}}{C} H - \underset{\underset{CH_{3}}{\left|\right.}}{\overset{\circ}{C}} - CH_{3}\) |
3. | \(H_{3} C - \underset{\underset{D}{\left|\right.}}{\overset{\circ}{C}} - \underset{\underset{CH_{3}}{\left|\right.}}{CH} - CH_{3}\) | 4. | \(H_{3} C - \underset{}{\overset{\circ}{C} H} - \underset{\underset{CH_{3}}{\left|\right.}}{CH} - CH_{3}\) |