Reactions of Alcohols
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323158 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2} \mathrm{OH} \xrightarrow{\mathrm{PCC}}\)
\(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO}\)
Hybridisation change involved at \(\mathrm{C}-1\) in the above reaction.

1 \(\mathrm{sp}^{2}\) to \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}\) to \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}\)
4 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}^{2}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323159 When a mixture containing \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) is heated with ethyl alcohol, a total of 4 moles of ethyl chloride is formed. Mole ratio of \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) in the mixture is

1 \(3: 1\)
2 \(1: 1\)
3 \(1: 3\)
4 \(2: 1\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323160 Mark the correct increasing order of reactivity of the following compounds with \(\mathrm{HBr} / \mathrm{HCl}\).
supporting img

1 \({\text{A < B}}\,\,{\text{ < }}\,\,{\text{C}}\)
2 \({\text{B < A}}\,\,{\text{ < }}\,\,{\text{C}}\)
3 \({\text{B < C}}\,\,{\text{ < }}\,\,{\text{A}}\)
4 \({\text{C < B}}\,\,{\text{ < }}\,\,{\text{A}}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323161 Consider the following alcohols:
supporting img
The order of decreasing reactivities of these alcohols towards nucleophilic substitution with \(\mathrm{HBr}\) is

1 III \(>\) I \(>\) IV \(>\) II
2 III \(>\) I \(>\) II \(>\) IV
3 I \(>\) III \(>\) IV \(>\) II
4 I \(>\) III \(>\) II \(>\) IV
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323158 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2} \mathrm{OH} \xrightarrow{\mathrm{PCC}}\)
\(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO}\)
Hybridisation change involved at \(\mathrm{C}-1\) in the above reaction.

1 \(\mathrm{sp}^{2}\) to \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}\) to \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}\)
4 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}^{2}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323159 When a mixture containing \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) is heated with ethyl alcohol, a total of 4 moles of ethyl chloride is formed. Mole ratio of \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) in the mixture is

1 \(3: 1\)
2 \(1: 1\)
3 \(1: 3\)
4 \(2: 1\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323160 Mark the correct increasing order of reactivity of the following compounds with \(\mathrm{HBr} / \mathrm{HCl}\).
supporting img

1 \({\text{A < B}}\,\,{\text{ < }}\,\,{\text{C}}\)
2 \({\text{B < A}}\,\,{\text{ < }}\,\,{\text{C}}\)
3 \({\text{B < C}}\,\,{\text{ < }}\,\,{\text{A}}\)
4 \({\text{C < B}}\,\,{\text{ < }}\,\,{\text{A}}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323161 Consider the following alcohols:
supporting img
The order of decreasing reactivities of these alcohols towards nucleophilic substitution with \(\mathrm{HBr}\) is

1 III \(>\) I \(>\) IV \(>\) II
2 III \(>\) I \(>\) II \(>\) IV
3 I \(>\) III \(>\) IV \(>\) II
4 I \(>\) III \(>\) II \(>\) IV
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323158 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2} \mathrm{OH} \xrightarrow{\mathrm{PCC}}\)
\(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO}\)
Hybridisation change involved at \(\mathrm{C}-1\) in the above reaction.

1 \(\mathrm{sp}^{2}\) to \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}\) to \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}\)
4 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}^{2}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323159 When a mixture containing \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) is heated with ethyl alcohol, a total of 4 moles of ethyl chloride is formed. Mole ratio of \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) in the mixture is

1 \(3: 1\)
2 \(1: 1\)
3 \(1: 3\)
4 \(2: 1\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323160 Mark the correct increasing order of reactivity of the following compounds with \(\mathrm{HBr} / \mathrm{HCl}\).
supporting img

1 \({\text{A < B}}\,\,{\text{ < }}\,\,{\text{C}}\)
2 \({\text{B < A}}\,\,{\text{ < }}\,\,{\text{C}}\)
3 \({\text{B < C}}\,\,{\text{ < }}\,\,{\text{A}}\)
4 \({\text{C < B}}\,\,{\text{ < }}\,\,{\text{A}}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323161 Consider the following alcohols:
supporting img
The order of decreasing reactivities of these alcohols towards nucleophilic substitution with \(\mathrm{HBr}\) is

1 III \(>\) I \(>\) IV \(>\) II
2 III \(>\) I \(>\) II \(>\) IV
3 I \(>\) III \(>\) IV \(>\) II
4 I \(>\) III \(>\) II \(>\) IV
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323158 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2} \mathrm{OH} \xrightarrow{\mathrm{PCC}}\)
\(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO}\)
Hybridisation change involved at \(\mathrm{C}-1\) in the above reaction.

1 \(\mathrm{sp}^{2}\) to \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}\) to \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}\)
4 \(\mathrm{sp}^{3}\) to \(\mathrm{sp}^{2}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323159 When a mixture containing \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) is heated with ethyl alcohol, a total of 4 moles of ethyl chloride is formed. Mole ratio of \(\mathrm{PCl}_{3}\) and \(\mathrm{PCl}_{5}\) in the mixture is

1 \(3: 1\)
2 \(1: 1\)
3 \(1: 3\)
4 \(2: 1\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323160 Mark the correct increasing order of reactivity of the following compounds with \(\mathrm{HBr} / \mathrm{HCl}\).
supporting img

1 \({\text{A < B}}\,\,{\text{ < }}\,\,{\text{C}}\)
2 \({\text{B < A}}\,\,{\text{ < }}\,\,{\text{C}}\)
3 \({\text{B < C}}\,\,{\text{ < }}\,\,{\text{A}}\)
4 \({\text{C < B}}\,\,{\text{ < }}\,\,{\text{A}}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323161 Consider the following alcohols:
supporting img
The order of decreasing reactivities of these alcohols towards nucleophilic substitution with \(\mathrm{HBr}\) is

1 III \(>\) I \(>\) IV \(>\) II
2 III \(>\) I \(>\) II \(>\) IV
3 I \(>\) III \(>\) IV \(>\) II
4 I \(>\) III \(>\) II \(>\) IV