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. 
Subtopic:  Ethers: Preparation & Properties, Uses |
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The major product of Williamson’s ether synthesis reaction would be:


1. Benzene
2. Methoxy benzene
3. Ethoxy benzene
4. Ethane

Subtopic:  Ethers: Preparation & Properties, Uses |
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Match the following:

List I List II
i.  O2N-C6H5-OCH(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
Subtopic:  Ethers: Preparation & Properties, Uses |
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Match the starting material in Column I with the products formed (Column II) in the reaction with HI.

Column I

Column II

A.  CH3-O-CH3 1.  
B.   2.  
C.   3.  
D.    4.  CH3-OH+CH3I
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
Subtopic:  Ethers: Preparation & Properties, Uses |
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Match the items of Column I with items of Column II.

Column l 

Column ll 

A.

Reimer-Tiemann reaction 

1.

Conversion of phenol to o-hydroxysalicylic aid 

B.

Kolbe's reaction 

2.

Heated copper at 573K

C.

Conversion of 2° alcohol to a ketone 

3.

Reaction of an alkyl halide
with sodium alkoxide 

D.

Williamson's synthesis 

4.

Conversion of phenol to salicylaldehyde

Codes

A B C D
1. 2 3 4 1
2. 3 4 1 2
3. 1 4 3 2
4. 4 1 2 3
Subtopic:  Ethers: Preparation & Properties, Uses |
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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
Subtopic:  Ethers: Preparation & Properties, Uses |
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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

Subtopic:  Ethers: Preparation & Properties, Uses |
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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
Subtopic:  Ethers: Preparation & Properties, Uses |
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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.
Subtopic:  Ethers: Preparation & Properties, Uses |
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Ethyl chloride is converted into diethyl ether by -

1. Wurtz reaction 2. Grignard reaction
3. Perkin's reaction 4. Williamson's synthesis

Subtopic:  Ethers: Preparation & Properties, Uses |
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