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Q. No.The correct stability order of the following species/molecules is :
1.
q > r > p
2.
r > q > p
3.
q > p > r
4.
p > q > r
Subtopic: Aromaticity & Polarity |
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Consider the given two statements:
In the light of the above statements, choose the correct answer from the options given below:
| Statement I: |
Methylcyclopentane and hex-3-ene are isomeric compounds.
|
| Statement II: | 1-Aminopentane and N-ethylpropylamine are functional isomers. |
| 1. | Both Statement I and Statement II are false. |
| 2. | Both Statement I and Statement II are true. |
| 3. | Statement I is true but Statement II is false. |
| 4. | Statement I is false but Statement II is true. |
Subtopic: Structural Isomers |
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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 |
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In the given structure, the number of sp and sp2 hybridized carbon atoms present, respectively, are :
| 1. | 3 and 6 | 2. | 3 and 5 |
| 3. | 4 and 6 | 4. | 4 and 5 |
Subtopic: Hybridisation & Structure of Carbon Compounds |
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Identify correct statement(s):
Choose the correct answer from the options given below :
1. (A), (C) and (D) only
2. (A), (B) and (E) only
3. (A) only
4. (A) and (C) only
| (A) | —OCH3 and —NHCOCH3 are activating groups. |
| (B) | —CN and —OH are meta-directing groups. |
| (C) | —CN and —SO3H are meta-directing groups. |
| (D) | Activating groups act as ortho – and para-directing groups. |
| (E) | Halides are activating groups. |
1. (A), (C) and (D) only
2. (A), (B) and (E) only
3. (A) only
4. (A) and (C) only
Subtopic: Electron Displacement Effects |
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Subtopic: Electron Displacement Effects | Reaction Intermediates ; Preparation & Properties |
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In the Carius method for estimation of halogens, 180 mg of an organic compound produced 143.5 mg of AgCl. The percentage composition of chlorine in the compound is:
[Given: molar mass in g mol–1 of Ag and Cl are108, 35.5 respectively]
1. 27.91%
2. 46.32%
3. 19.72%
4. 59.67%
[Given: molar mass in g mol–1 of Ag and Cl are108, 35.5 respectively]
1. 27.91%
2. 46.32%
3. 19.72%
4. 59.67%
Subtopic: Quantitative Analysis of Organic Compounds |
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The IUPAC name of the following compound is :
1. 2-Carboxy-5-methoxycarbonylhexane.
2. Methyl-6-carboxy-2,5-dimethylhexanoate.
3. Methyl-5-carboxy-2-methylhexanoate.
4. 6-Methoxycarbonyl-2,5-dimethylhexanoic acid.
1. 2-Carboxy-5-methoxycarbonylhexane.
2. Methyl-6-carboxy-2,5-dimethylhexanoate.
3. Methyl-5-carboxy-2-methylhexanoate.
4. 6-Methoxycarbonyl-2,5-dimethylhexanoic acid.
Subtopic: Nomenclature |
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Subtopic: Nomenclature |
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Arrange the following in increasing order of their stability:
1. (a) < (b) < (c) < (d)
2. (a) < (d) < (c) < (b)
3. (a) < (c) < (d) < (b)
4. (d) < (c) < (a) < (b)
| a. |  |
b. |  |
| c. |  |
d. |  |
1. (a) < (b) < (c) < (d)
2. (a) < (d) < (c) < (b)
3. (a) < (c) < (d) < (b)
4. (d) < (c) < (a) < (b)
Subtopic: Electron Displacement Effects |
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