Methods of Preparation of Ethers
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322952 Statement A :
supporting img
Statement B :
Alkoxides are not only nucleophiles but also the strong base, so they can react with alkyl halide to form the eliminated product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322953 The reaction,
\(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{I} \rightarrow \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}+\mathrm{NaI}\)
is known as

1 Grignard's synthesis
2 Kolbe's synthesis
3 Wurtz synthesis
4 Williamson's synthesis
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322954 Williamson's synthesis of preparing dimethyl ether is a/an:

1 Electrophilic substitution
2 \(\mathrm{S}_{\mathrm{N}} 1\) reaction
3 \(\mathrm{S}_{\mathrm{N}} 2\) reaction
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322955 In Williamson's synthesis, ethoxyethane is prepared by

1 passing ethanol over heated alumina
2 heating sodium ethoxide with ethyl bromide
3 treating ethyl alcohol with excess of \(\mathrm{H}_{2} \mathrm{SO}_{4}\) at \(430-440 \mathrm{~K}\)
4 heating ethanol with dry \(\mathrm{Ag}_{2} \mathrm{O}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322952 Statement A :
supporting img
Statement B :
Alkoxides are not only nucleophiles but also the strong base, so they can react with alkyl halide to form the eliminated product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322953 The reaction,
\(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{I} \rightarrow \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}+\mathrm{NaI}\)
is known as

1 Grignard's synthesis
2 Kolbe's synthesis
3 Wurtz synthesis
4 Williamson's synthesis
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322954 Williamson's synthesis of preparing dimethyl ether is a/an:

1 Electrophilic substitution
2 \(\mathrm{S}_{\mathrm{N}} 1\) reaction
3 \(\mathrm{S}_{\mathrm{N}} 2\) reaction
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322955 In Williamson's synthesis, ethoxyethane is prepared by

1 passing ethanol over heated alumina
2 heating sodium ethoxide with ethyl bromide
3 treating ethyl alcohol with excess of \(\mathrm{H}_{2} \mathrm{SO}_{4}\) at \(430-440 \mathrm{~K}\)
4 heating ethanol with dry \(\mathrm{Ag}_{2} \mathrm{O}\)
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322952 Statement A :
supporting img
Statement B :
Alkoxides are not only nucleophiles but also the strong base, so they can react with alkyl halide to form the eliminated product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322953 The reaction,
\(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{I} \rightarrow \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}+\mathrm{NaI}\)
is known as

1 Grignard's synthesis
2 Kolbe's synthesis
3 Wurtz synthesis
4 Williamson's synthesis
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322954 Williamson's synthesis of preparing dimethyl ether is a/an:

1 Electrophilic substitution
2 \(\mathrm{S}_{\mathrm{N}} 1\) reaction
3 \(\mathrm{S}_{\mathrm{N}} 2\) reaction
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322955 In Williamson's synthesis, ethoxyethane is prepared by

1 passing ethanol over heated alumina
2 heating sodium ethoxide with ethyl bromide
3 treating ethyl alcohol with excess of \(\mathrm{H}_{2} \mathrm{SO}_{4}\) at \(430-440 \mathrm{~K}\)
4 heating ethanol with dry \(\mathrm{Ag}_{2} \mathrm{O}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322952 Statement A :
supporting img
Statement B :
Alkoxides are not only nucleophiles but also the strong base, so they can react with alkyl halide to form the eliminated product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322953 The reaction,
\(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{I} \rightarrow \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OC}_{2} \mathrm{H}_{5}+\mathrm{NaI}\)
is known as

1 Grignard's synthesis
2 Kolbe's synthesis
3 Wurtz synthesis
4 Williamson's synthesis
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322954 Williamson's synthesis of preparing dimethyl ether is a/an:

1 Electrophilic substitution
2 \(\mathrm{S}_{\mathrm{N}} 1\) reaction
3 \(\mathrm{S}_{\mathrm{N}} 2\) reaction
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322955 In Williamson's synthesis, ethoxyethane is prepared by

1 passing ethanol over heated alumina
2 heating sodium ethoxide with ethyl bromide
3 treating ethyl alcohol with excess of \(\mathrm{H}_{2} \mathrm{SO}_{4}\) at \(430-440 \mathrm{~K}\)
4 heating ethanol with dry \(\mathrm{Ag}_{2} \mathrm{O}\)