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Q. No.
Subtopic: Nomenclature |
84%
Level 1: 80%+
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IUPAC name of the compound 
is:
1. Hex-2-en-1-ol
2. Cyclohex-2-en-1-ol
3. 3-hydroxy cyclohexene
4. Cyclohex-1-en-3-ol
is:1. Hex-2-en-1-ol
2. Cyclohex-2-en-1-ol
3. 3-hydroxy cyclohexene
4. Cyclohex-1-en-3-ol
Subtopic: Nomenclature |
82%
Level 1: 80%+
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Energy difference between actual structure of compound and most stable resonating structure having least energy is called:
1. Heat of hydrogenation
2. Resonance energy
3. Heat of combustion
4. Exchange energy
1. Heat of hydrogenation
2. Resonance energy
3. Heat of combustion
4. Exchange energy
Subtopic: Electron Displacement Effects |
98%
Level 1: 80%+
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The effect takes place between lone pair and \(\pi\)-bond is konwn as :
1. Inductive
2. Electromeric
3. Resonance
4. Hyperconjugation
1. Inductive
2. Electromeric
3. Resonance
4. Hyperconjugation
Subtopic: Electron Displacement Effects |
92%
Level 1: 80%+
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Which of the following element\((\text{S})\) is/are confirmed by appearance of blood red colour with \(\text{FeCl}_3\) in Lassaigne's test?
1. Presence of \(\text{S}\) only
2. Presence of \(\text{N}\) & \(\text{S}\)
3. Presence of \(\text{N}\) only
4. Presence of \(\text{P}\) only
1. Presence of \(\text{S}\) only
2. Presence of \(\text{N}\) & \(\text{S}\)
3. Presence of \(\text{N}\) only
4. Presence of \(\text{P}\) only
Subtopic: Qualitative Analysis of Organic Compounds |
85%
Level 1: 80%+
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Subtopic: Conformational Isomers |
78%
Level 2: 60%+
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The total number of \(\sigma\) and \(\pi\) bonds in 2-formylhex-4-enoic acid are:
1. 20
2. 22
3. 18
4. 24
1. 20
2. 22
3. 18
4. 24
Subtopic: Bond Cleavage & Isomerism |
61%
Level 2: 60%+
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Which chromatographic technique is based on the principle of preferential adsorption?
1. A only
2. B only
3. C only
4. Both A and B
| (A) | Column chromatography |
| (B) | Thin layer chromatography |
| (C) | Paper chromatography |
2. B only
3. C only
4. Both A and B
Subtopic: Purification of Organic Compounds |
75%
Level 2: 60%+
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How many of the following compounds contain a sulphur atom?
Pyrrole, Furan, Thiophene, Cysteine, Tyrosine, Pyridine
Pyrrole, Furan, Thiophene, Cysteine, Tyrosine, Pyridine
| 1. | Nine (9) | 2. | Zero (0) |
| 3. | Five (5) | 4. | Two (2) |
Subtopic: Aromaticity & Polarity |
81%
Level 1: 80%+
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How many stereoisomers are possible for the following structure?
| 1. | 4 (Four) | 2. | 2 (Two) |
| 3. | 1 (One) | 4. | 8 (Eight) |
Subtopic: Stereo Isomers |
53%
Level 3: 35%-60%
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