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

322880 The acid-catalyzed hydration of alkenes involves the following three steps:
I. Nucleophilic attack of water on carbocation.
II. Protonation of alkene to form carbocation by the electrophilic attack of \(\mathrm{H}_{3} \mathrm{O}^{+}\).
III. Deprotonation to form an alcohol.
Identify the sequence for the mechanism of reaction in the acid-catalyzed hydration of alkenes.

1 I, II, and III
2 II, I, and III
3 III, I, and II
4 III, II, and I
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322881 The reagent required to convert propene to 1 propanol is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\) followed by \(\mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{NaOH}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) followed by hydrolysis with boiling water
3 \(\mathrm{HBr}\) followed by hydrolysis with aqueous \(\mathrm{KOH}\)
4 \(\mathrm{Hg}\left(\mathrm{OCOCH}_{3}\right)_{2}\) followed by reduction with \(\mathrm{NaBH}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{3}+\mathrm{PhMgX}\)
2 \(\mathrm{PhCOCH}_{3}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{MgX}\)
3 \(\mathrm{PhCOCH}_{2} \mathrm{CH}_{3}+\mathrm{CH}_{3} \mathrm{MgX}\)
4 \(\mathrm{HCHO}+\mathrm{PhCH}\left(\mathrm{CH}_{3}\right) \mathrm{CH}_{2} \mathrm{MgX}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322883 The reaction of Grignard reagent with formaldehyde followed by acidification gives

1 An aldehyde
2 A primary alcohol
3 A carboxylic acid
4 A ketone
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322884 supporting img

B and C are, respectively,

supporting img

1 B is I and C is II
2 B is II and C is I
3 I in both cases
4 II in both cases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322880 The acid-catalyzed hydration of alkenes involves the following three steps:
I. Nucleophilic attack of water on carbocation.
II. Protonation of alkene to form carbocation by the electrophilic attack of \(\mathrm{H}_{3} \mathrm{O}^{+}\).
III. Deprotonation to form an alcohol.
Identify the sequence for the mechanism of reaction in the acid-catalyzed hydration of alkenes.

1 I, II, and III
2 II, I, and III
3 III, I, and II
4 III, II, and I
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322881 The reagent required to convert propene to 1 propanol is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\) followed by \(\mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{NaOH}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) followed by hydrolysis with boiling water
3 \(\mathrm{HBr}\) followed by hydrolysis with aqueous \(\mathrm{KOH}\)
4 \(\mathrm{Hg}\left(\mathrm{OCOCH}_{3}\right)_{2}\) followed by reduction with \(\mathrm{NaBH}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{3}+\mathrm{PhMgX}\)
2 \(\mathrm{PhCOCH}_{3}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{MgX}\)
3 \(\mathrm{PhCOCH}_{2} \mathrm{CH}_{3}+\mathrm{CH}_{3} \mathrm{MgX}\)
4 \(\mathrm{HCHO}+\mathrm{PhCH}\left(\mathrm{CH}_{3}\right) \mathrm{CH}_{2} \mathrm{MgX}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322883 The reaction of Grignard reagent with formaldehyde followed by acidification gives

1 An aldehyde
2 A primary alcohol
3 A carboxylic acid
4 A ketone
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322884 supporting img

B and C are, respectively,

supporting img

1 B is I and C is II
2 B is II and C is I
3 I in both cases
4 II in both cases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322880 The acid-catalyzed hydration of alkenes involves the following three steps:
I. Nucleophilic attack of water on carbocation.
II. Protonation of alkene to form carbocation by the electrophilic attack of \(\mathrm{H}_{3} \mathrm{O}^{+}\).
III. Deprotonation to form an alcohol.
Identify the sequence for the mechanism of reaction in the acid-catalyzed hydration of alkenes.

1 I, II, and III
2 II, I, and III
3 III, I, and II
4 III, II, and I
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322881 The reagent required to convert propene to 1 propanol is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\) followed by \(\mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{NaOH}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) followed by hydrolysis with boiling water
3 \(\mathrm{HBr}\) followed by hydrolysis with aqueous \(\mathrm{KOH}\)
4 \(\mathrm{Hg}\left(\mathrm{OCOCH}_{3}\right)_{2}\) followed by reduction with \(\mathrm{NaBH}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{3}+\mathrm{PhMgX}\)
2 \(\mathrm{PhCOCH}_{3}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{MgX}\)
3 \(\mathrm{PhCOCH}_{2} \mathrm{CH}_{3}+\mathrm{CH}_{3} \mathrm{MgX}\)
4 \(\mathrm{HCHO}+\mathrm{PhCH}\left(\mathrm{CH}_{3}\right) \mathrm{CH}_{2} \mathrm{MgX}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322883 The reaction of Grignard reagent with formaldehyde followed by acidification gives

1 An aldehyde
2 A primary alcohol
3 A carboxylic acid
4 A ketone
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322884 supporting img

B and C are, respectively,

supporting img

1 B is I and C is II
2 B is II and C is I
3 I in both cases
4 II in both cases
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322880 The acid-catalyzed hydration of alkenes involves the following three steps:
I. Nucleophilic attack of water on carbocation.
II. Protonation of alkene to form carbocation by the electrophilic attack of \(\mathrm{H}_{3} \mathrm{O}^{+}\).
III. Deprotonation to form an alcohol.
Identify the sequence for the mechanism of reaction in the acid-catalyzed hydration of alkenes.

1 I, II, and III
2 II, I, and III
3 III, I, and II
4 III, II, and I
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322881 The reagent required to convert propene to 1 propanol is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\) followed by \(\mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{NaOH}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) followed by hydrolysis with boiling water
3 \(\mathrm{HBr}\) followed by hydrolysis with aqueous \(\mathrm{KOH}\)
4 \(\mathrm{Hg}\left(\mathrm{OCOCH}_{3}\right)_{2}\) followed by reduction with \(\mathrm{NaBH}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{3}+\mathrm{PhMgX}\)
2 \(\mathrm{PhCOCH}_{3}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{MgX}\)
3 \(\mathrm{PhCOCH}_{2} \mathrm{CH}_{3}+\mathrm{CH}_{3} \mathrm{MgX}\)
4 \(\mathrm{HCHO}+\mathrm{PhCH}\left(\mathrm{CH}_{3}\right) \mathrm{CH}_{2} \mathrm{MgX}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322883 The reaction of Grignard reagent with formaldehyde followed by acidification gives

1 An aldehyde
2 A primary alcohol
3 A carboxylic acid
4 A ketone
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322884 supporting img

B and C are, respectively,

supporting img

1 B is I and C is II
2 B is II and C is I
3 I in both cases
4 II in both cases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322880 The acid-catalyzed hydration of alkenes involves the following three steps:
I. Nucleophilic attack of water on carbocation.
II. Protonation of alkene to form carbocation by the electrophilic attack of \(\mathrm{H}_{3} \mathrm{O}^{+}\).
III. Deprotonation to form an alcohol.
Identify the sequence for the mechanism of reaction in the acid-catalyzed hydration of alkenes.

1 I, II, and III
2 II, I, and III
3 III, I, and II
4 III, II, and I
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322881 The reagent required to convert propene to 1 propanol is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\) followed by \(\mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{NaOH}\)
2 Conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) followed by hydrolysis with boiling water
3 \(\mathrm{HBr}\) followed by hydrolysis with aqueous \(\mathrm{KOH}\)
4 \(\mathrm{Hg}\left(\mathrm{OCOCH}_{3}\right)_{2}\) followed by reduction with \(\mathrm{NaBH}_{4}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{3}+\mathrm{PhMgX}\)
2 \(\mathrm{PhCOCH}_{3}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{MgX}\)
3 \(\mathrm{PhCOCH}_{2} \mathrm{CH}_{3}+\mathrm{CH}_{3} \mathrm{MgX}\)
4 \(\mathrm{HCHO}+\mathrm{PhCH}\left(\mathrm{CH}_{3}\right) \mathrm{CH}_{2} \mathrm{MgX}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322883 The reaction of Grignard reagent with formaldehyde followed by acidification gives

1 An aldehyde
2 A primary alcohol
3 A carboxylic acid
4 A ketone
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322884 supporting img

B and C are, respectively,

supporting img

1 B is I and C is II
2 B is II and C is I
3 I in both cases
4 II in both cases