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

322943 Williamson synthesis of ether is an example of

1 Nucleophilic addition
2 Electrophilic substitution
3 Nucleophilic substitution
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322944 In Williamson synthesis if tertiary alkyl halide is used then

1 ether is obtained in good yield
2 ether is obtained in poor yield
3 alkene is the only reaction product
4 a mixture of alkene as a major product and ether as a minor product forms.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322945 Which of the following on heating gives an ether as major product ?
\(\mathrm{P}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}+\mathrm{CH}_{3} \mathrm{ONa}\)
Q : \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{CH}_{3} \mathrm{Br}\)
\(\mathrm{R}:\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Cl}+\mathrm{CH}_{3} \mathrm{ONa}\)
\(\mathrm{S}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{CHCl}+\mathrm{CH}_{3} \mathrm{ONa}\)

1 Both P and R
2 Both Q and S
3 Both P and Q
4 Both R and S
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322946 The compound \({\text{A}}\) on treatment with \({\text{Na}}\) gives \({\text{B}}\), and with \({\text{PC}}{{\text{l}}_{\text{5}}}\) gives \({\text{C.}}{\mkern 1mu} \,{\text{B}}{\mkern 1mu} \,{\mkern 1mu} {\text{and}}{\mkern 1mu} \,{\text{C}}\) react together to give diethyl ether. \({\text{A,B}}\,\,{\text{and}}\,\,{\text{C}}\) are in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322947 For the preparation of \(t\)-butylmethylether by Williamson's method the correct choice of reagents is

1 Methoxide and \(t\)-butylbromide
2 Methanol and 2-bromobutane
3 2-Butanol and methylbromide
4 t-Butoxide and methylbromide
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322943 Williamson synthesis of ether is an example of

1 Nucleophilic addition
2 Electrophilic substitution
3 Nucleophilic substitution
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322944 In Williamson synthesis if tertiary alkyl halide is used then

1 ether is obtained in good yield
2 ether is obtained in poor yield
3 alkene is the only reaction product
4 a mixture of alkene as a major product and ether as a minor product forms.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322945 Which of the following on heating gives an ether as major product ?
\(\mathrm{P}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}+\mathrm{CH}_{3} \mathrm{ONa}\)
Q : \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{CH}_{3} \mathrm{Br}\)
\(\mathrm{R}:\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Cl}+\mathrm{CH}_{3} \mathrm{ONa}\)
\(\mathrm{S}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{CHCl}+\mathrm{CH}_{3} \mathrm{ONa}\)

1 Both P and R
2 Both Q and S
3 Both P and Q
4 Both R and S
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322946 The compound \({\text{A}}\) on treatment with \({\text{Na}}\) gives \({\text{B}}\), and with \({\text{PC}}{{\text{l}}_{\text{5}}}\) gives \({\text{C.}}{\mkern 1mu} \,{\text{B}}{\mkern 1mu} \,{\mkern 1mu} {\text{and}}{\mkern 1mu} \,{\text{C}}\) react together to give diethyl ether. \({\text{A,B}}\,\,{\text{and}}\,\,{\text{C}}\) are in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322947 For the preparation of \(t\)-butylmethylether by Williamson's method the correct choice of reagents is

1 Methoxide and \(t\)-butylbromide
2 Methanol and 2-bromobutane
3 2-Butanol and methylbromide
4 t-Butoxide and methylbromide
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322943 Williamson synthesis of ether is an example of

1 Nucleophilic addition
2 Electrophilic substitution
3 Nucleophilic substitution
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322944 In Williamson synthesis if tertiary alkyl halide is used then

1 ether is obtained in good yield
2 ether is obtained in poor yield
3 alkene is the only reaction product
4 a mixture of alkene as a major product and ether as a minor product forms.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322945 Which of the following on heating gives an ether as major product ?
\(\mathrm{P}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}+\mathrm{CH}_{3} \mathrm{ONa}\)
Q : \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{CH}_{3} \mathrm{Br}\)
\(\mathrm{R}:\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Cl}+\mathrm{CH}_{3} \mathrm{ONa}\)
\(\mathrm{S}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{CHCl}+\mathrm{CH}_{3} \mathrm{ONa}\)

1 Both P and R
2 Both Q and S
3 Both P and Q
4 Both R and S
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322946 The compound \({\text{A}}\) on treatment with \({\text{Na}}\) gives \({\text{B}}\), and with \({\text{PC}}{{\text{l}}_{\text{5}}}\) gives \({\text{C.}}{\mkern 1mu} \,{\text{B}}{\mkern 1mu} \,{\mkern 1mu} {\text{and}}{\mkern 1mu} \,{\text{C}}\) react together to give diethyl ether. \({\text{A,B}}\,\,{\text{and}}\,\,{\text{C}}\) are in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322947 For the preparation of \(t\)-butylmethylether by Williamson's method the correct choice of reagents is

1 Methoxide and \(t\)-butylbromide
2 Methanol and 2-bromobutane
3 2-Butanol and methylbromide
4 t-Butoxide and methylbromide
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322943 Williamson synthesis of ether is an example of

1 Nucleophilic addition
2 Electrophilic substitution
3 Nucleophilic substitution
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322944 In Williamson synthesis if tertiary alkyl halide is used then

1 ether is obtained in good yield
2 ether is obtained in poor yield
3 alkene is the only reaction product
4 a mixture of alkene as a major product and ether as a minor product forms.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322945 Which of the following on heating gives an ether as major product ?
\(\mathrm{P}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}+\mathrm{CH}_{3} \mathrm{ONa}\)
Q : \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{CH}_{3} \mathrm{Br}\)
\(\mathrm{R}:\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Cl}+\mathrm{CH}_{3} \mathrm{ONa}\)
\(\mathrm{S}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{CHCl}+\mathrm{CH}_{3} \mathrm{ONa}\)

1 Both P and R
2 Both Q and S
3 Both P and Q
4 Both R and S
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322946 The compound \({\text{A}}\) on treatment with \({\text{Na}}\) gives \({\text{B}}\), and with \({\text{PC}}{{\text{l}}_{\text{5}}}\) gives \({\text{C.}}{\mkern 1mu} \,{\text{B}}{\mkern 1mu} \,{\mkern 1mu} {\text{and}}{\mkern 1mu} \,{\text{C}}\) react together to give diethyl ether. \({\text{A,B}}\,\,{\text{and}}\,\,{\text{C}}\) are in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322947 For the preparation of \(t\)-butylmethylether by Williamson's method the correct choice of reagents is

1 Methoxide and \(t\)-butylbromide
2 Methanol and 2-bromobutane
3 2-Butanol and methylbromide
4 t-Butoxide and methylbromide
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322943 Williamson synthesis of ether is an example of

1 Nucleophilic addition
2 Electrophilic substitution
3 Nucleophilic substitution
4 Electrophilic addition
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322944 In Williamson synthesis if tertiary alkyl halide is used then

1 ether is obtained in good yield
2 ether is obtained in poor yield
3 alkene is the only reaction product
4 a mixture of alkene as a major product and ether as a minor product forms.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322945 Which of the following on heating gives an ether as major product ?
\(\mathrm{P}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}+\mathrm{CH}_{3} \mathrm{ONa}\)
Q : \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{ONa}+\mathrm{CH}_{3} \mathrm{Br}\)
\(\mathrm{R}:\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Cl}+\mathrm{CH}_{3} \mathrm{ONa}\)
\(\mathrm{S}: \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{CHCl}+\mathrm{CH}_{3} \mathrm{ONa}\)

1 Both P and R
2 Both Q and S
3 Both P and Q
4 Both R and S
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322946 The compound \({\text{A}}\) on treatment with \({\text{Na}}\) gives \({\text{B}}\), and with \({\text{PC}}{{\text{l}}_{\text{5}}}\) gives \({\text{C.}}{\mkern 1mu} \,{\text{B}}{\mkern 1mu} \,{\mkern 1mu} {\text{and}}{\mkern 1mu} \,{\text{C}}\) react together to give diethyl ether. \({\text{A,B}}\,\,{\text{and}}\,\,{\text{C}}\) are in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{6}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{Cl}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322947 For the preparation of \(t\)-butylmethylether by Williamson's method the correct choice of reagents is

1 Methoxide and \(t\)-butylbromide
2 Methanol and 2-bromobutane
3 2-Butanol and methylbromide
4 t-Butoxide and methylbromide