Q. No.The Williamson's synthesis reaction among the following is -
| 1. |   |
| 2. |   |
| 3. | \(C_2H_5I + C_2H_5ONa \rightarrow C_2H_5-O-C_2H_5 + NaI\)  |
| 4. |   |
The major product of Williamson’s ether synthesis reaction would be:
| 1. | Benzene | 2. | Methoxy benzene |
| 3. | Ethoxy benzene | 4. | Ethane |
Match the following:
| List I | List II | ||
| i. | O2N-C6H5-OCH3 (p) | a. | 4-Ethoxy-1,1-dimethylcyclohexane |
| ii. | C2H5OCH2-CH(CH3)2 | b. | 1-Chloro-2-methoxyethane |
| iii. | CH3OCH2CH2Cl | c. | 1-Ethoxy-2-methylpropane |
| iv. |  |
d. | 1-Methoxy-4-nitrobenzene |
| i | ii | iii | iv | |
| 1. | d | c | b | a |
| 2. | c | d | b | a |
| 3. | a | c | b | d |
| 4. | b | c | d | a |
Match the starting material in Column I with the products formed (Column II) in the reaction with HI.
| Column I |
Column II |
||
| A. |  |
1. |  |
| B. |  |
2. |  |
| C. |  |
3. |  |
| D. |  |
4. |  |
| 5. |  |
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 5 | 2 |
| 3. | 5 | 4 | 3 | 2 |
| 4. | 4 | 5 | 2 | 1 |
Match the reactions from Column-I with their corresponding descriptions from Column-II and select the correct option.
|
Column-l (Name of Reaction) |
Column-ll (Description of Reaction) |
||
| A. |
Reimer-Tiemann reaction |
I. |
Conversion of phenol to o-hydroxysalicylic aid |
| B. |
Kolbe's reaction |
II. |
Heated copper at 573K |
| C. |
Conversion of 2alcohol to a ketone |
III. |
Reaction of an alkyl halide |
| D. |
Williamson's synthesis |
Iv. |
Conversion of phenol to salicylaldehyde |
Codes:
| A | B | C | D | |
| 1. | II | III | IV | I |
| 2. | III | IV | I | II |
| 3. | I | IV | III | II |
| 4. | IV | I | II | III |
Product C in the following sequence of reactions is:
\(C_2H_5Br \xrightarrow{NaOH\text{(aq)}}\ A \xrightarrow{Na}\ B\ \xrightarrow{CH_3I}\ C\)
| 1. | Butane | 2. | Ethane |
| 3. | Methyl ethyl ether | 4. | Propane |
Ether is more volatile than alcohol despite having the same molecular formula. This is due to -
1. Dipolar character of ethers
2. Alcohols having resonance structures
3. Intermolecular hydrogen bonding in ethers
4. Intermolecular hydrogen bonding in alcohols
In the following Williamson’s synthesis reaction,
CH3CH2ONa + CH3-Br → ?
The product will be:
| 1. | 1-Methoxyethane | 2. | 2-Methoxyethane |
| 3. | 3-Methoxyethane | 4. | 4-Methoxyethane |
Select the correct option based on statements below:
| Assertion (A): | Ether behave as bases in the presence of mineral acids. |
| Reason (R): | It is due to the presence of lone pairs of electrons on the oxygen atom. |
| 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. |
Ethyl chloride is converted into diethyl ether by -
| 1. | Wurtz reaction | 2. | Grignard reaction |
| 3. | Perkin's reaction | 4. | Williamson's synthesis |
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