Anti-Markovnikov’s addition of HBr is not observed in-

1. Propene 2. But-1-ene
3. But-2-ene 4. Pent-2-ene 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 78%
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Baeyer's reagent is: 

1. Acidified permanganate solution

2. Alkaline permanganate solution

3. Neutral permanganate solution

4. Aqueous bromine solution

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 80%
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Which of the following compound has highest boiling point ?

(1) n-pentane

(2) 2-methyl butane

(3) 2, 2-dimethyl propane

(4) n-hexane

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 90%
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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. \(H_{3} C - \underset{}{\overset{\circ}{C} H} - \underset{\underset{CH_{3}}{\left|\right.}}{CH} - CH_{3}\)
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 77%
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Propyne H2so4HgSO4 A.

What is compound A?

1. 2-Propanol

2. Propane

3. Propene

4. 2-Propanone

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 75%
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 1-Butyne and 2-Butyne can be differentiated by -

1. Bromine, CCl4

2. H2 , Lindlar catalyst

3. Dilute H2SO4, HgSO4 

4. Ammoniacal cuprous chloride

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 71%
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Which of the following Hydrocarbon has the highest octane number?

1. Methane

2. Ethane

3. Iso-octane

4. Triptane

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 76%
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In the presence of peroxide, hydrogen chloride and hydrogen fluoride do not undergo anti-Markovnikov's

addition reaction with alkenes because-

1. Both are highly ionic

2. One is oxidizing and the other is reducing

3. One of the steps is endothermic in both the cases

4. All the steps are exothermic in both cases

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 56%
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In the reaction sequence (A) will be

Anhy. AlCl3HBr[A]

1. 1-Bromo-2-ethyl cyclopentane

2. 1-Bromo-1-methyl cyclopentane

3. 1-Bromo-5-methyl cyclopentane

4. 5-Bromo-1-methyl cyclopentane

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 83%
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The reaction of propene with HOCl proceeds via the addition of-

1. H+ in the first step 2. Cl+ in the first step
3. OH- in the first step 4. Cl+ and OH- in a single step
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 54%
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