What is the product formed when n-heptane is heated with a mixture of Cr2O3 and Al2O3 at 600°C?
| 1. | Cyclohexane | 2. | Cyclohexene |
| 3. | Benzene | 4. | Toluene |
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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Level 2: 60%+
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Which of the following alkanes will give the maximum number of isomers when a monochloro-substituted product is obtained?
| 1. |  |
2. |  |
| 3. | \(\mathrm{CH_4}\) |
4. |  |
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
Level 3: 35%-60%
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Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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Level 3: 35%-60%
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On halogenation, an alkane gives only one monohalogenated product. The alkane may be :
(1) 2-methyl butane
(2) 2, 2-dimethyl propane
(3) cyclopentane
(4) both (b) and (c)
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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The above reaction is an example of:-
1. isomerization
2. polymerization
3. cracking
4. de-hydrogenation
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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Which of the following is the best stereochemical representation when reaction between 1 -methylcyclohexene and NBS react in aqueous dimethyl sulfoxide?
| 1. |  |
2. |  |
| 3. |  |
4. | None of these |
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
55%
Level 3: 35%-60%
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Propadiene, \(C_3H_4\) molecule contains:
1. Two \(sp^2\) and one sp hybridized carbon
2. One \(sp^2\) and two sp hybridized carbons
3. One \(sp^2\) and three sp hybridized carbon
4. None of the above
1. Two \(sp^2\) and one sp hybridized carbon
2. One \(sp^2\) and two sp hybridized carbons
3. One \(sp^2\) and three sp hybridized carbon
4. None of the above
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
82%
Level 1: 80%+
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The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is:
| 1. | The eclipsed conformation of ethane is more stable than staggered conformation because eclipsed conformation has no torsional strain. |
| 2. | The eclipsed conformation of ethane is more stable than staggered conformation even though the eclipsed conformation has a torsional strain. |
| 3. | The staggered conformation of ethane is more stable than eclipsed conformation because staggered conformation has no torsional strain. |
| 4. | The staggered conformation of ethane is less stable than eclipsed conformation because staggered conformation has a torsional strain. |
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
84%
Level 1: 80%+
NEET - 2016
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\(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}=\mathrm{CH}_2 \xrightarrow[\text { peroxide}]{\mathrm{HBr}} Y \xrightarrow{\mathrm{C}_2 \mathrm{H}_5 \mathrm{ONa}} Z\)
Product \(Z\) in the above-mentioned reaction is:
1. \(\mathrm{CH}_3-\left(\mathrm{CH}_2\right)_3-\mathrm{O}-\mathrm{CH}_2 \mathrm{CH}_3\)
2. \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{O}-\mathrm{CH}_2 \mathrm{CH}_3\)
3. \(\mathrm{CH}_3\left(\mathrm{CH}_2\right)_4-\mathrm{O}-\mathrm{CH}_3\)
4. \(\mathrm{CH}_3 \mathrm{CH}_2-\mathrm{CH}\left(\mathrm{CH}_3\right)-\mathrm{O}-\mathrm{CH}_2 \mathrm{CH}_3 \)
Product \(Z\) in the above-mentioned reaction is:
1. \(\mathrm{CH}_3-\left(\mathrm{CH}_2\right)_3-\mathrm{O}-\mathrm{CH}_2 \mathrm{CH}_3\)
2. \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{O}-\mathrm{CH}_2 \mathrm{CH}_3\)
3. \(\mathrm{CH}_3\left(\mathrm{CH}_2\right)_4-\mathrm{O}-\mathrm{CH}_3\)
4. \(\mathrm{CH}_3 \mathrm{CH}_2-\mathrm{CH}\left(\mathrm{CH}_3\right)-\mathrm{O}-\mathrm{CH}_2 \mathrm{CH}_3 \)
Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
74%
Level 2: 60%+
AIPMT - 2014
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