- 1(current)
Q. No.Which of the following is the most preferred method for preparing pure alkyl chlorides from alcohols?
1. \(\mathrm{{R}-{OH}+{HCl} \xrightarrow{{ZnCl}_2} {R}-{Cl}+{H}_2 {O}}\)
2. \(\mathrm{{R}-{OH}+{PCl}_5 → {R}-{Cl}+{POCl}_3+{HCl}}\)
3. \(\mathrm{{R}-{OH}+{SOCl}_2 → {R}-{Cl}+{SO}_2+{HCl}}\)
4. \(\mathrm{{R}-{OH}+{PCl}_3 → {R}-{Cl}+{H}_3 {PO}_3}\)
1. \(\mathrm{{R}-{OH}+{HCl} \xrightarrow{{ZnCl}_2} {R}-{Cl}+{H}_2 {O}}\)
2. \(\mathrm{{R}-{OH}+{PCl}_5 → {R}-{Cl}+{POCl}_3+{HCl}}\)
3. \(\mathrm{{R}-{OH}+{SOCl}_2 → {R}-{Cl}+{SO}_2+{HCl}}\)
4. \(\mathrm{{R}-{OH}+{PCl}_3 → {R}-{Cl}+{H}_3 {PO}_3}\)
Subtopic: Introduction and Physical Properties |
86%
From NCERT
NEET - 2024
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NEET 2026 - Target Batch - Vital
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The following compound would be classified as:
| 1. | Vinylic halide | 2. | Benzylic halide |
| 3. | Aryl halide | 4. | Allylic halide |
Subtopic: Introduction and Physical Properties |
69%
From NCERT
NEET - 2023
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NEET 2026 - Target Batch - Vital
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Find the correct sequence of the bond enthalpy of the "C-X" bond among the following:
1. CH3-F < CH3-Cl > CH3-Br > CH3-I
2. CH3-Cl > CH3-F > CH3-Br > CH3-I
3. CH3-F < CH3-Cl < CH3-Br < CH3-I
4. CH3-F > CH3-Cl > CH3-Br > CH3-I
Subtopic: Introduction and Physical Properties | Chemical Properties |
63%
From NCERT
NEET - 2021
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NEET 2026 - Target Batch - Vital
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The correct order of increasing C-X bond reactivity toward nucleophiles among the following is:
| I |  |
II |  |
| III | \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{X}\) | IV | \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{X}\) |
| 1. | I < II < IV < III | 2. | II < III < I < IV |
| 3. | IV < III < I < II | 4. | III < II < I < IV |
Subtopic: Introduction and Physical Properties | Chemical Properties |
54%
From NCERT
AIPMT - 2010
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NEET 2026 - Target Batch - Vital
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- 1(current)
Q. No.
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