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Subtopic: Nomenclature |
From NCERT
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IUPAC name of the following compound is:
1. 1, 2 - Dimethylcyclohexene
2. 2, 3 - Dimethylcyclohexene
3. 1, 2 - Dimethylcyclohex-2-ene
4. 1, 6 - Dimethylcyclohexene
1. 1, 2 - Dimethylcyclohexene
2. 2, 3 - Dimethylcyclohexene
3. 1, 2 - Dimethylcyclohex-2-ene
4. 1, 6 - Dimethylcyclohexene
Subtopic: Nomenclature |
From NCERT
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A steam volatile organic compound which is immiscible with water has a boiling point of \(250^\circ \text{C}\). During steam distillation, a mixture of this organic compound and water will boil:
1. Above \(100^\circ \text{C}\) but below \(250^\circ \text{C}\).
2. Above \(250^\circ \text{C}\).
3. At \(250^\circ \text{C}\).
4. Close to but below \(100^\circ \text{C}\).
1. Above \(100^\circ \text{C}\) but below \(250^\circ \text{C}\).
2. Above \(250^\circ \text{C}\).
3. At \(250^\circ \text{C}\).
4. Close to but below \(100^\circ \text{C}\).
Subtopic: Qualitative Analysis of Organic Compounds |
From NCERT
NEET - 2024
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
Which of the following is the strongest nucleophile?
| 1. | \( \text{HC} \equiv \text{C}^- \) | 2. | \(\text{H}_2\text{C} = \text{CH}^- \) |
| 3. | \(\text{CH}_3- \text{CH}_2^- \) | 4. | \(\text{NH}_2^-\) |
Subtopic: Nucleophile & Electrophile |
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The correct arrangement of the following carbocations in decreasing order of their stability is:
1. A > B > C > D
2. B > C > A > D
3. C > B > A > D
4. C > A > B > D
Subtopic: Electron Displacement Effects |
55%
From NCERT
JEE
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Two compounds I and II are eluted by column chromatography (adsorption of I > II).
Which one of the following is a correct statement?
1. II moves slower and has higher \(R_f\) value than I
2. II moves faster and has higher \(R_f\) value than I
3. I moves faster and has higher \(R_f\) value than II
4. I moves slower and has higher \(R_f\) Value than II
Which one of the following is a correct statement?
1. II moves slower and has higher \(R_f\) value than I
2. II moves faster and has higher \(R_f\) value than I
3. I moves faster and has higher \(R_f\) value than II
4. I moves slower and has higher \(R_f\) Value than II
Subtopic: Purification of Organic Compounds |
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The Incorrect statement(s) concerning the structures E, F, and G is :
1. E,F, and G are resonance structures
2. E,F and G are tautomers
3. F and G are geometrical isomers
4. F and G are diastereomers
1. E,F, and G are resonance structures
2. E,F and G are tautomers
3. F and G are geometrical isomers
4. F and G are diastereomers
Subtopic: Conformational Isomers |
From NCERT
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How many geometrical isomers are possible for a compound with the molecular formula \(\mathrm{C_2BrClFI}\)?
1. 3
2. 4
3. 5
4. 6
1. 3
2. 4
3. 5
4. 6
Subtopic: Stereo Isomers |
From NCERT
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The following compound is named as :
1. 6-Mercaptocyclohex-4-ene-1,3-diol
2. 1-Mercaptocyclohex-2-ene-4,6-diol
3. 1-Mercaptocyclohex-5-ene-2,4-diol
4. 4-Mercaptocyclohex-2-ene-1,5-diol
1. 6-Mercaptocyclohex-4-ene-1,3-diol
2. 1-Mercaptocyclohex-2-ene-4,6-diol
3. 1-Mercaptocyclohex-5-ene-2,4-diol
4. 4-Mercaptocyclohex-2-ene-1,5-diol
Subtopic: Nomenclature |
From NCERT
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What is correct about the following structure?
1. Total stereoisomers =4
2. Number of chiral carbons =1
3. Number of optical isomers =2
4. Number of meso compounds= 2
1. Total stereoisomers =4
2. Number of chiral carbons =1
3. Number of optical isomers =2
4. Number of meso compounds= 2
Subtopic: Stereo Isomers |
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