11. ALCOHOLS, PHENOLS AND ETHERS[KARNATAKA CET EXCLUSIVE]
CHEMISTRY(KCET)

285568 \(+\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\text { Ether }} \mathrm{A} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \mathrm{B}\)

The IUPAC name of ' B ' is

1 3-methylbutan-2-ol
2 2-methylbutan-3-ol
3 2-methylbutan-2-ol
4 pentan-2-ol
CHEMISTRY(KCET)

285569 \(\xrightarrow{\text { - }} \xrightarrow{\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCl} / \text { base }} \mathrm{X} \xrightarrow[\text { (Major product) }]{\text { Nitration }} \mathrm{Y}\)
Y is

Ans:a
Exp:(a)
Phenol
\(\xrightarrow[\text { Benzoylation }]{\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCl} \text { base }}\)
\((-\mathrm{HCl})\)
Phenyl benzoate (X)
\(\text { Conc. } \mathrm{HNO}_3+\mathrm{H}_2 \mathrm{SO}_4\)
4-Nitrophyenyl benzoate
(Y)

CHEMISTRY(KCET)

285570 0.44 g of a monohydric alcohol when added tomethylmagnesium iodide in ether liberates at S.T.P., \(112 \mathrm{~cm}^3\) of methane. With PCC the same alcohol forms a carbonyl compound that answers silver mirror test. The monohydric alcohol is

1 \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{CH}_2 \mathrm{OH}\)
2 \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}\)
CHEMISTRY(KCET)

285568 \(+\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\text { Ether }} \mathrm{A} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \mathrm{B}\)

The IUPAC name of ' B ' is

1 3-methylbutan-2-ol
2 2-methylbutan-3-ol
3 2-methylbutan-2-ol
4 pentan-2-ol
CHEMISTRY(KCET)

285569 \(\xrightarrow{\text { - }} \xrightarrow{\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCl} / \text { base }} \mathrm{X} \xrightarrow[\text { (Major product) }]{\text { Nitration }} \mathrm{Y}\)
Y is

Ans:a
Exp:(a)
Phenol
\(\xrightarrow[\text { Benzoylation }]{\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCl} \text { base }}\)
\((-\mathrm{HCl})\)
Phenyl benzoate (X)
\(\text { Conc. } \mathrm{HNO}_3+\mathrm{H}_2 \mathrm{SO}_4\)
4-Nitrophyenyl benzoate
(Y)

CHEMISTRY(KCET)

285570 0.44 g of a monohydric alcohol when added tomethylmagnesium iodide in ether liberates at S.T.P., \(112 \mathrm{~cm}^3\) of methane. With PCC the same alcohol forms a carbonyl compound that answers silver mirror test. The monohydric alcohol is

1 \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{CH}_2 \mathrm{OH}\)
2 \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}\)
CHEMISTRY(KCET)

285568 \(+\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\text { Ether }} \mathrm{A} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \mathrm{B}\)

The IUPAC name of ' B ' is

1 3-methylbutan-2-ol
2 2-methylbutan-3-ol
3 2-methylbutan-2-ol
4 pentan-2-ol
CHEMISTRY(KCET)

285569 \(\xrightarrow{\text { - }} \xrightarrow{\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCl} / \text { base }} \mathrm{X} \xrightarrow[\text { (Major product) }]{\text { Nitration }} \mathrm{Y}\)
Y is

Ans:a
Exp:(a)
Phenol
\(\xrightarrow[\text { Benzoylation }]{\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCl} \text { base }}\)
\((-\mathrm{HCl})\)
Phenyl benzoate (X)
\(\text { Conc. } \mathrm{HNO}_3+\mathrm{H}_2 \mathrm{SO}_4\)
4-Nitrophyenyl benzoate
(Y)

CHEMISTRY(KCET)

285570 0.44 g of a monohydric alcohol when added tomethylmagnesium iodide in ether liberates at S.T.P., \(112 \mathrm{~cm}^3\) of methane. With PCC the same alcohol forms a carbonyl compound that answers silver mirror test. The monohydric alcohol is

1 \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{CH}_2 \mathrm{OH}\)
2 \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}\)