Q. No.Find the correct reason for the higher boiling point of propanol compared with butane.
1. Butane molecules are held together by strong ionic forces.2. Propanol molecules form intermolecular hydrogen bonds.
3. Propanol molecules form intramolecular hydrogen bonds.
4. Butane molecules form intramolecular hydrogen bonds.
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Which of the following factors is responsible for the higher boiling point of ethanol compared to dimethyl ether?
| 1. | H-bonding in ethanol | 2. | H-bonding in dimethyl ether |
| 3. | -CH3 group in ethanol | 4. | -CH3 group in dimethyl ether |
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The below-mentioned reaction can be classified as:
1. Dehydration reaction
2. Williamson alcohol synthesis
3. Williamson ether synthesis
4. Dehydrogenation of alcohol
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The formula for allyl alcohol is:
1. CH3-CH=CHOH
2. CH2=CHCH2OH
3. HOCH2CH2CH3
4. None of the above.
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Which of the following reagents can be used to convert propene into propan-1-ol?
1. CH3COOH
2. H3BO3
3. B2H6/NaOH-H2O2
4. H2SO4/H2O
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The IUPAC name of the below compound is:
| 1. | 1-Phenylpropan-2-ol | 2. | 2-Phenylpropan-2-ol |
| 3. | 1-Phenylpropan-1-ol | 4. | 2-Phenylpropan-1-ol |
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Which of the following alcohols is expected to have the lowest pKa value?
1. Ethanol
2. 2-Fluoroethanol
3. 2,2,2-Trifluoroethanol
4. 2-Chloroethanol
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Select the correct option based on statements below:
| Assertion (A): | p-Nitrophenol is more acidic than phenol. |
| Reason (R): | Nitro group helps in the stabilization of the phenoxide ion by dispersal of negative charge due to resonance. |
| 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. | (A) is False but (R) is True. |
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