An organic compound A reacts with sodium metal and forms B. On heating with conc. H2SO4, A gives diethyl ether. So A and B are:
1. C3H7OH and CH3ONa
2. CH3OH and CH3ONa
3. C4H9OH and C4H9ONa
4. C2H5OH and C2H5ONa
| 1. | Lead compounds in liquor | 2. | Methyl alcohol in liquor |
| 3. | Ethyl alcohol in liquor | 4. | Carbonic acid in liquor |
Which of the following products is not formed upon dehydration of the given compound?

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2. | ![]() |
| 3. | ![]() |
4. | ![]() |
Consider the following alcohols,
| I. | ![]() |
| II. | ![]() |
| III. | ![]() |
| IV. | ![]() |
Ease of dehydration of the above alcohols will be in the order of:
| 1. | I < II < III < IV | 2. | I > II > III > IV |
| 3. | III < II < I < IV | 4. | II < III < IV < I |
Which of the following reagents is most suitable for converting cyclohexanol into cyclohexene?
| 1. | conc. HCl + ZnCl2 | 2. | conc. H3PO4 |
| 3. | HBr | 4. | conc. HCl |

| A | B | |
| 1. | ![]() |
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| 2. | ![]() |
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| 3. | ![]() |
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| 4. | ![]() |
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What is the correct order of dehydration rate for the compounds (i), (ii), and (iii) when treated with concentrated \(\text{H}_2\text{SO}_4\)?
| (i) | ![]() |
| (ii) | ![]() |
| (iii) | ![]() |
1. (i) > (iii) > (ii)
2. (i) > (ii) > (iii)
3. (ii) > (i) > (iii)
4. (ii) > (iii) > (i)
Which of the following reagents causes rapid loss of optical activity in optically active 2-octanol?
| 1. | Dilute acid | 2. | Dilute base |
| 3. | Light | 4. | Humidity |
The most reactive compound among the following toward electrophilic aromatic substitution reaction is:
| 1. | ![]() |
2. | ![]() |
| 3. | ![]() |
4. | ![]() |
The proposed mechanism for hydration of ethene to yield ethanol is as follows:

The wrong step in the above mechanism is:
| 1. | Step 1 | 2. | Step 2 |
| 3. | Step 3 | 4. | Both steps 2 and 3 |