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

322971 Name the reagent used in the conversion of benzene to benzene sulphonic acid during the preparation of phenol

1 Sulphuric acid
2 Water
3 Diazonium salt
4 Oleum
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322972 Benzene diazonium chloride on hydrolysis gives

1 Benzene
2 Benzyl alcohol
3 Phenol
4 Chlorobenzene
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322973 Which among the following is not the method of prepration of phenol?

1 \({\text{Cumene}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{dil}}{\text{.Hcl,}}\Delta }]{{{\text{ (i) }}{{\text{O}}_{\text{2}}}{\text{/Co - naphthalene,423K}}}}{\text{Phenol}}\)
2 \({\text{Chlorobenzene}}\xrightarrow[{{\text{ (ii) }}{{\text{H}}_{\text{3}}}{{\text{O}}^{{\text{ + }}}}{\text{,150 atm}}}]{{{\text{ (i) NaOH ,623 K}}}}{\text{Phenol}}\)
3 \({\text{Aniline}}\xrightarrow[{\left( {{\text{ii}}} \right){{\text{H}}_{\text{2}}}{\text{O,}}\Delta }]{{{\text{ (i) NaN}}{{\text{O}}_{\text{2}}}{\text{ + HCl,273 K}}}}{\text{Phenol}}\)
4 \({\text{Benzene + conc}}{\text{.}}{{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\xrightarrow{\Delta }{\text{Phenol}}\)
MHTCET - 2022
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322974 Benzenediazonium chloride can be converted into phenol by treating it with

1 \(\mathrm{H}_{3} \mathrm{PO}_{3}, \mathrm{H}_{2} \mathrm{O}, \mathrm{CuCl}\)
2 \(\mathrm{H}_{2} \mathrm{O}\), heat
3 Alcohol, heat
4 \(\mathrm{HBF}_{4}\) and \(\mathrm{NaNO}_{2} / \mathrm{Cu}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322975 \({\text{Cumene}}\xrightarrow{{{{\text{O}}_{\text{2}}}}}{\text{X}}{\text{.}}\). The product \(\mathrm{X}\) is

1 Phenol
2 Cumene hydroperoxide
3 Toluene
4 Acetone
NEET DIGITAL LIBRARY
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322971 Name the reagent used in the conversion of benzene to benzene sulphonic acid during the preparation of phenol

1 Sulphuric acid
2 Water
3 Diazonium salt
4 Oleum
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322972 Benzene diazonium chloride on hydrolysis gives

1 Benzene
2 Benzyl alcohol
3 Phenol
4 Chlorobenzene
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322973 Which among the following is not the method of prepration of phenol?

1 \({\text{Cumene}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{dil}}{\text{.Hcl,}}\Delta }]{{{\text{ (i) }}{{\text{O}}_{\text{2}}}{\text{/Co - naphthalene,423K}}}}{\text{Phenol}}\)
2 \({\text{Chlorobenzene}}\xrightarrow[{{\text{ (ii) }}{{\text{H}}_{\text{3}}}{{\text{O}}^{{\text{ + }}}}{\text{,150 atm}}}]{{{\text{ (i) NaOH ,623 K}}}}{\text{Phenol}}\)
3 \({\text{Aniline}}\xrightarrow[{\left( {{\text{ii}}} \right){{\text{H}}_{\text{2}}}{\text{O,}}\Delta }]{{{\text{ (i) NaN}}{{\text{O}}_{\text{2}}}{\text{ + HCl,273 K}}}}{\text{Phenol}}\)
4 \({\text{Benzene + conc}}{\text{.}}{{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\xrightarrow{\Delta }{\text{Phenol}}\)
MHTCET - 2022
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322974 Benzenediazonium chloride can be converted into phenol by treating it with

1 \(\mathrm{H}_{3} \mathrm{PO}_{3}, \mathrm{H}_{2} \mathrm{O}, \mathrm{CuCl}\)
2 \(\mathrm{H}_{2} \mathrm{O}\), heat
3 Alcohol, heat
4 \(\mathrm{HBF}_{4}\) and \(\mathrm{NaNO}_{2} / \mathrm{Cu}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322975 \({\text{Cumene}}\xrightarrow{{{{\text{O}}_{\text{2}}}}}{\text{X}}{\text{.}}\). The product \(\mathrm{X}\) is

1 Phenol
2 Cumene hydroperoxide
3 Toluene
4 Acetone
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322971 Name the reagent used in the conversion of benzene to benzene sulphonic acid during the preparation of phenol

1 Sulphuric acid
2 Water
3 Diazonium salt
4 Oleum
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322972 Benzene diazonium chloride on hydrolysis gives

1 Benzene
2 Benzyl alcohol
3 Phenol
4 Chlorobenzene
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322973 Which among the following is not the method of prepration of phenol?

1 \({\text{Cumene}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{dil}}{\text{.Hcl,}}\Delta }]{{{\text{ (i) }}{{\text{O}}_{\text{2}}}{\text{/Co - naphthalene,423K}}}}{\text{Phenol}}\)
2 \({\text{Chlorobenzene}}\xrightarrow[{{\text{ (ii) }}{{\text{H}}_{\text{3}}}{{\text{O}}^{{\text{ + }}}}{\text{,150 atm}}}]{{{\text{ (i) NaOH ,623 K}}}}{\text{Phenol}}\)
3 \({\text{Aniline}}\xrightarrow[{\left( {{\text{ii}}} \right){{\text{H}}_{\text{2}}}{\text{O,}}\Delta }]{{{\text{ (i) NaN}}{{\text{O}}_{\text{2}}}{\text{ + HCl,273 K}}}}{\text{Phenol}}\)
4 \({\text{Benzene + conc}}{\text{.}}{{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\xrightarrow{\Delta }{\text{Phenol}}\)
MHTCET - 2022
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322974 Benzenediazonium chloride can be converted into phenol by treating it with

1 \(\mathrm{H}_{3} \mathrm{PO}_{3}, \mathrm{H}_{2} \mathrm{O}, \mathrm{CuCl}\)
2 \(\mathrm{H}_{2} \mathrm{O}\), heat
3 Alcohol, heat
4 \(\mathrm{HBF}_{4}\) and \(\mathrm{NaNO}_{2} / \mathrm{Cu}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322975 \({\text{Cumene}}\xrightarrow{{{{\text{O}}_{\text{2}}}}}{\text{X}}{\text{.}}\). The product \(\mathrm{X}\) is

1 Phenol
2 Cumene hydroperoxide
3 Toluene
4 Acetone
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322971 Name the reagent used in the conversion of benzene to benzene sulphonic acid during the preparation of phenol

1 Sulphuric acid
2 Water
3 Diazonium salt
4 Oleum
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322972 Benzene diazonium chloride on hydrolysis gives

1 Benzene
2 Benzyl alcohol
3 Phenol
4 Chlorobenzene
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322973 Which among the following is not the method of prepration of phenol?

1 \({\text{Cumene}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{dil}}{\text{.Hcl,}}\Delta }]{{{\text{ (i) }}{{\text{O}}_{\text{2}}}{\text{/Co - naphthalene,423K}}}}{\text{Phenol}}\)
2 \({\text{Chlorobenzene}}\xrightarrow[{{\text{ (ii) }}{{\text{H}}_{\text{3}}}{{\text{O}}^{{\text{ + }}}}{\text{,150 atm}}}]{{{\text{ (i) NaOH ,623 K}}}}{\text{Phenol}}\)
3 \({\text{Aniline}}\xrightarrow[{\left( {{\text{ii}}} \right){{\text{H}}_{\text{2}}}{\text{O,}}\Delta }]{{{\text{ (i) NaN}}{{\text{O}}_{\text{2}}}{\text{ + HCl,273 K}}}}{\text{Phenol}}\)
4 \({\text{Benzene + conc}}{\text{.}}{{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\xrightarrow{\Delta }{\text{Phenol}}\)
MHTCET - 2022
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322974 Benzenediazonium chloride can be converted into phenol by treating it with

1 \(\mathrm{H}_{3} \mathrm{PO}_{3}, \mathrm{H}_{2} \mathrm{O}, \mathrm{CuCl}\)
2 \(\mathrm{H}_{2} \mathrm{O}\), heat
3 Alcohol, heat
4 \(\mathrm{HBF}_{4}\) and \(\mathrm{NaNO}_{2} / \mathrm{Cu}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322975 \({\text{Cumene}}\xrightarrow{{{{\text{O}}_{\text{2}}}}}{\text{X}}{\text{.}}\). The product \(\mathrm{X}\) is

1 Phenol
2 Cumene hydroperoxide
3 Toluene
4 Acetone
NEET DIGITAL LIBRARY
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322971 Name the reagent used in the conversion of benzene to benzene sulphonic acid during the preparation of phenol

1 Sulphuric acid
2 Water
3 Diazonium salt
4 Oleum
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322972 Benzene diazonium chloride on hydrolysis gives

1 Benzene
2 Benzyl alcohol
3 Phenol
4 Chlorobenzene
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322973 Which among the following is not the method of prepration of phenol?

1 \({\text{Cumene}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{dil}}{\text{.Hcl,}}\Delta }]{{{\text{ (i) }}{{\text{O}}_{\text{2}}}{\text{/Co - naphthalene,423K}}}}{\text{Phenol}}\)
2 \({\text{Chlorobenzene}}\xrightarrow[{{\text{ (ii) }}{{\text{H}}_{\text{3}}}{{\text{O}}^{{\text{ + }}}}{\text{,150 atm}}}]{{{\text{ (i) NaOH ,623 K}}}}{\text{Phenol}}\)
3 \({\text{Aniline}}\xrightarrow[{\left( {{\text{ii}}} \right){{\text{H}}_{\text{2}}}{\text{O,}}\Delta }]{{{\text{ (i) NaN}}{{\text{O}}_{\text{2}}}{\text{ + HCl,273 K}}}}{\text{Phenol}}\)
4 \({\text{Benzene + conc}}{\text{.}}{{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\xrightarrow{\Delta }{\text{Phenol}}\)
MHTCET - 2022
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322974 Benzenediazonium chloride can be converted into phenol by treating it with

1 \(\mathrm{H}_{3} \mathrm{PO}_{3}, \mathrm{H}_{2} \mathrm{O}, \mathrm{CuCl}\)
2 \(\mathrm{H}_{2} \mathrm{O}\), heat
3 Alcohol, heat
4 \(\mathrm{HBF}_{4}\) and \(\mathrm{NaNO}_{2} / \mathrm{Cu}\)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

322975 \({\text{Cumene}}\xrightarrow{{{{\text{O}}_{\text{2}}}}}{\text{X}}{\text{.}}\). The product \(\mathrm{X}\) is

1 Phenol
2 Cumene hydroperoxide
3 Toluene
4 Acetone