15474
Which of the following alcohol is not present in the mixture containing major products. Product mixture.
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15475
\(m\) -Bromoanisole reacts with \(NaNH_2\) in liquid ammonia to give mainly.
1 \(m\) -methoxyaniline
2 \(o\) -methoxyaniline
3 \(p\) -methoxyaniline
4 \(o, m\) and \(p\) -methoxyaniline in equal amounts
Explanation:
According benzyne mechanism.
ALCOHOLS, PHENOLS AND ETHER
15476
Image \(\xrightarrow[{heat}]{{NBS\,/\,CC{l_4}}}A\xrightarrow{{C{H_3}ONa}}\,B,\)product \(B\) isThe final product \((B)\) formed in the reaction sequence
1
2
3
4
Explanation:
According alillic substitution followed by \(N.S.R.\) reaction.
ALCOHOLS, PHENOLS AND ETHER
15477
Benzoylation of phenol with benzoyl chloride in the presence of dilute \(NaOH\) gives phenyl benzoate. This reaction is an example of
1 Friedel -Crafts reaction
2 Reimer -Tiemann reaction
3 Claisen -Schmidt reaction
4 Schotten -Baumann reaction
Explanation:
The process of benzoylation of compounds containing active hydrogen such as phenol, aniline, alcohol, etc, with benzoyl chloride in the presence of aqueous \(\mathrm{NaOH}\) is called Schotten- Baumann reaction.
15474
Which of the following alcohol is not present in the mixture containing major products. Product mixture.
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15475
\(m\) -Bromoanisole reacts with \(NaNH_2\) in liquid ammonia to give mainly.
1 \(m\) -methoxyaniline
2 \(o\) -methoxyaniline
3 \(p\) -methoxyaniline
4 \(o, m\) and \(p\) -methoxyaniline in equal amounts
Explanation:
According benzyne mechanism.
ALCOHOLS, PHENOLS AND ETHER
15476
Image \(\xrightarrow[{heat}]{{NBS\,/\,CC{l_4}}}A\xrightarrow{{C{H_3}ONa}}\,B,\)product \(B\) isThe final product \((B)\) formed in the reaction sequence
1
2
3
4
Explanation:
According alillic substitution followed by \(N.S.R.\) reaction.
ALCOHOLS, PHENOLS AND ETHER
15477
Benzoylation of phenol with benzoyl chloride in the presence of dilute \(NaOH\) gives phenyl benzoate. This reaction is an example of
1 Friedel -Crafts reaction
2 Reimer -Tiemann reaction
3 Claisen -Schmidt reaction
4 Schotten -Baumann reaction
Explanation:
The process of benzoylation of compounds containing active hydrogen such as phenol, aniline, alcohol, etc, with benzoyl chloride in the presence of aqueous \(\mathrm{NaOH}\) is called Schotten- Baumann reaction.
15474
Which of the following alcohol is not present in the mixture containing major products. Product mixture.
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15475
\(m\) -Bromoanisole reacts with \(NaNH_2\) in liquid ammonia to give mainly.
1 \(m\) -methoxyaniline
2 \(o\) -methoxyaniline
3 \(p\) -methoxyaniline
4 \(o, m\) and \(p\) -methoxyaniline in equal amounts
Explanation:
According benzyne mechanism.
ALCOHOLS, PHENOLS AND ETHER
15476
Image \(\xrightarrow[{heat}]{{NBS\,/\,CC{l_4}}}A\xrightarrow{{C{H_3}ONa}}\,B,\)product \(B\) isThe final product \((B)\) formed in the reaction sequence
1
2
3
4
Explanation:
According alillic substitution followed by \(N.S.R.\) reaction.
ALCOHOLS, PHENOLS AND ETHER
15477
Benzoylation of phenol with benzoyl chloride in the presence of dilute \(NaOH\) gives phenyl benzoate. This reaction is an example of
1 Friedel -Crafts reaction
2 Reimer -Tiemann reaction
3 Claisen -Schmidt reaction
4 Schotten -Baumann reaction
Explanation:
The process of benzoylation of compounds containing active hydrogen such as phenol, aniline, alcohol, etc, with benzoyl chloride in the presence of aqueous \(\mathrm{NaOH}\) is called Schotten- Baumann reaction.
NEET Test Series from KOTA - 10 Papers In MS WORD
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ALCOHOLS, PHENOLS AND ETHER
15473
\(X\) is -
1 \(CHO -(CH_2)_3 -CHO\)
2 \(CHO -(CH_2)_2 -CHO\)
3 \(CHO -(CH_2)_3 -CH_3\)
4 \(CHO -CHO\)
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15474
Which of the following alcohol is not present in the mixture containing major products. Product mixture.
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15475
\(m\) -Bromoanisole reacts with \(NaNH_2\) in liquid ammonia to give mainly.
1 \(m\) -methoxyaniline
2 \(o\) -methoxyaniline
3 \(p\) -methoxyaniline
4 \(o, m\) and \(p\) -methoxyaniline in equal amounts
Explanation:
According benzyne mechanism.
ALCOHOLS, PHENOLS AND ETHER
15476
Image \(\xrightarrow[{heat}]{{NBS\,/\,CC{l_4}}}A\xrightarrow{{C{H_3}ONa}}\,B,\)product \(B\) isThe final product \((B)\) formed in the reaction sequence
1
2
3
4
Explanation:
According alillic substitution followed by \(N.S.R.\) reaction.
ALCOHOLS, PHENOLS AND ETHER
15477
Benzoylation of phenol with benzoyl chloride in the presence of dilute \(NaOH\) gives phenyl benzoate. This reaction is an example of
1 Friedel -Crafts reaction
2 Reimer -Tiemann reaction
3 Claisen -Schmidt reaction
4 Schotten -Baumann reaction
Explanation:
The process of benzoylation of compounds containing active hydrogen such as phenol, aniline, alcohol, etc, with benzoyl chloride in the presence of aqueous \(\mathrm{NaOH}\) is called Schotten- Baumann reaction.
15474
Which of the following alcohol is not present in the mixture containing major products. Product mixture.
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15475
\(m\) -Bromoanisole reacts with \(NaNH_2\) in liquid ammonia to give mainly.
1 \(m\) -methoxyaniline
2 \(o\) -methoxyaniline
3 \(p\) -methoxyaniline
4 \(o, m\) and \(p\) -methoxyaniline in equal amounts
Explanation:
According benzyne mechanism.
ALCOHOLS, PHENOLS AND ETHER
15476
Image \(\xrightarrow[{heat}]{{NBS\,/\,CC{l_4}}}A\xrightarrow{{C{H_3}ONa}}\,B,\)product \(B\) isThe final product \((B)\) formed in the reaction sequence
1
2
3
4
Explanation:
According alillic substitution followed by \(N.S.R.\) reaction.
ALCOHOLS, PHENOLS AND ETHER
15477
Benzoylation of phenol with benzoyl chloride in the presence of dilute \(NaOH\) gives phenyl benzoate. This reaction is an example of
1 Friedel -Crafts reaction
2 Reimer -Tiemann reaction
3 Claisen -Schmidt reaction
4 Schotten -Baumann reaction
Explanation:
The process of benzoylation of compounds containing active hydrogen such as phenol, aniline, alcohol, etc, with benzoyl chloride in the presence of aqueous \(\mathrm{NaOH}\) is called Schotten- Baumann reaction.