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 H3O+.
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 B2H6 followed by H2O2/NaOH
2 Conc. H2SO4 followed by hydrolysis with boiling water
3 HBr followed by hydrolysis with aqueous KOH
4 Hg(OCOCH3)2 followed by reduction with NaBH4
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 CH3CH2COCH3+PhMgX
2 PhCOCH3+CH3CH2MgX
3 PhCOCH2CH3+CH3MgX
4 HCHO+PhCH(CH3)CH2MgX
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 H3O+.
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 B2H6 followed by H2O2/NaOH
2 Conc. H2SO4 followed by hydrolysis with boiling water
3 HBr followed by hydrolysis with aqueous KOH
4 Hg(OCOCH3)2 followed by reduction with NaBH4
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 CH3CH2COCH3+PhMgX
2 PhCOCH3+CH3CH2MgX
3 PhCOCH2CH3+CH3MgX
4 HCHO+PhCH(CH3)CH2MgX
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 H3O+.
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 B2H6 followed by H2O2/NaOH
2 Conc. H2SO4 followed by hydrolysis with boiling water
3 HBr followed by hydrolysis with aqueous KOH
4 Hg(OCOCH3)2 followed by reduction with NaBH4
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 CH3CH2COCH3+PhMgX
2 PhCOCH3+CH3CH2MgX
3 PhCOCH2CH3+CH3MgX
4 HCHO+PhCH(CH3)CH2MgX
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 H3O+.
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 B2H6 followed by H2O2/NaOH
2 Conc. H2SO4 followed by hydrolysis with boiling water
3 HBr followed by hydrolysis with aqueous KOH
4 Hg(OCOCH3)2 followed by reduction with NaBH4
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 CH3CH2COCH3+PhMgX
2 PhCOCH3+CH3CH2MgX
3 PhCOCH2CH3+CH3MgX
4 HCHO+PhCH(CH3)CH2MgX
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 H3O+.
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 B2H6 followed by H2O2/NaOH
2 Conc. H2SO4 followed by hydrolysis with boiling water
3 HBr followed by hydrolysis with aqueous KOH
4 Hg(OCOCH3)2 followed by reduction with NaBH4
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322882 supporting img
cannot be prepared by

1 CH3CH2COCH3+PhMgX
2 PhCOCH3+CH3CH2MgX
3 PhCOCH2CH3+CH3MgX
4 HCHO+PhCH(CH3)CH2MgX
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