Which of the following alkanes cannot be prepared by Kolbe’s electrolytic method?

1. Ethane 2. Butane
3. Propane 4. Octane

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 85%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

The most reactive compound among the following toward sodium metal is: 

1. 1-Propyne 
2. Methane 
3. Ethyne 
4. 1-Butyne 
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 62%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.

Which compound among the following is not categorized as benzenoid?
 
1. 2.
3. 4.
Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 81%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Hydrocarbon that cannot be synthesized through Kolbe's electrolytic method is:
1. n-Butane 2. Ethane
3. Methane 4. Ethene
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 72%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.

Consider the following reactions sequence,
 
The product B(Major product) is: 
1. Benzoquinone
2. Benzene sulphonic acid
3. Cyclohexane
4. Resorcinol
Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 91%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

The given reaction is an example of: 

1. Addition reaction
2. Nucleophilic substitution reaction
3. Electrophilic substitution reaction
4. Electrophilic addition reaction
Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 62%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

The number of hydrogen atoms attached to primary (1°), secondary (2°), and tertiary (3°) carbons in the given organic compound are:



1. 18, 4, 0 
2. 18, 6, 0 
3. 20, 6, 2 
4. 18, 4, 2 
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 84%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

The correct order for the relative energies of the following sawhorse conformations is:
1. IV > III > II > I 2. IV > III = II > I
3. II ≈ III > IV > I 4. I > II = III > IV
Subtopic:  Alkanes, Alkenes and Alkynes - Conformations and Hybridisation |
 67%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.

What is the correct order of boiling points for the following compounds, arranged from the highest to the lowest?
(a) Heptane
(b) Butane
(c) 2-Methylbutane
(d) 2-Methylpropane
(e) Hexane
Choose the correct option from the following:
1. (a) > (c) > (e) > (d) > (b)
2. (c) > (d) > (a) > (e) > (b)
3. (a) > (e) > (b) > (c) > (d)
4. (a) > (e) > (c) > (b) > (d)
Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 55%
Level 3: 35%-60%
NEET - 2022
Hints

advertisementadvertisement

Consider the reaction,

Major product is:
1. 2.
3. 4.
Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
 67%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.