Q. No.The compound with the highest boiling point, among the following, is:
1. n-Hexane
2. n-Pentane
3. 2, 2-Dimethylpropane
4. 2-Methylbutane
1. n-Hexane
2. n-Pentane
3. 2, 2-Dimethylpropane
4. 2-Methylbutane
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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| Assertion (A): | The boiling point of neopentane is less than that of isopentane |
| Reason (R): | The higher the branching, the lower the boiling point of a compound. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Which molecule exhibits the greatest distance between two adjacent carbon atoms?
1. Ethane
2. Ethene
3. Ethyne
4. Benzene
1. Ethane
2. Ethene
3. Ethyne
4. Benzene
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Level 1: 80%+
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The effect of branching on an alkane is:
1. It increases its boiling point
2. It decreases its boiling point
3. It doesn’t change its boiling point
4. None of the above
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Level 1: 80%+
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Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Level 1: 80%+
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What is the total number of primary hydrogen atoms present in the given compound?
1. 3.0
2. 15
3. 17
4. 18
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Match the bond line structures of hydrocarbons given in List-I with the corresponding boiling points given in List-II.
| List-I (Compound) | List-II (Boiling point in K) | ||
| (a) |  |
(i) | 300.9 |
| (b) |  |
(ii) | 282.5 |
| (c) |  |
(iii) | 309.1 |
| (d) |  |
(iv) | 341.9 |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (iv) | (iii) | (ii) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (iv) | (i) | (ii) | (iii) |
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
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Level 1: 80%+
NEET - 2022
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Given below are two statements:
| Assertion (A): | Among isomeric pentanes, 2,2-dimethylpropane has the highest boiling point. |
| Reason (R): | Branching does not affect the boiling point. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | Both (A) and (R) are False. |
| 4. | (A) is True but (R) is False. |
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
82%
Level 1: 80%+
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