323747
Assertion : Nitration of benzoic acid gives \(m-\) nitrobenzoic acid. Reason : Carboxyl group increases the electron density at the meta-position.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The carboxyulic acid group is an electron withdrawing group. It decreases the electron density from ortho and para position and does not increase the electron density from meta position. The decreasing effect is less at meta position. This directs the incoming group to the meta position. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323748
In a reaction involving ring substitution of \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{Y}\), the major product is meta isomer. The group ' \(\mathrm{Y}\) ' can be
1 \(-\mathrm{NH}_{2}\)
2 \(-\mathrm{Cl}\)
3 \(-\mathrm{CH}_{3}\)
4 \(-\mathrm{COOH}\)
Explanation:
\(-\mathrm{COOH}\) group is ring deactivating group and \(\mathrm{m}\) - directing group.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323749
Assertion : Benzoic acid does not give Friedel Craft's reaction. Reason : Benzoic acid is obtained by catalytic oxidation of toluene with air in presence of \(\mathrm{Co}-\) \(\mathrm{Mn}\) as catalyst.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The electron-withdrawing nature of the carboxyl group \((-\mathrm{COOH})\) deactivates the benzene ring, preventing compounds like benzoic acid from readily undergoing Friedel-Craft's reactions. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323750
Oxalic acid on heating with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) gives
323747
Assertion : Nitration of benzoic acid gives \(m-\) nitrobenzoic acid. Reason : Carboxyl group increases the electron density at the meta-position.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The carboxyulic acid group is an electron withdrawing group. It decreases the electron density from ortho and para position and does not increase the electron density from meta position. The decreasing effect is less at meta position. This directs the incoming group to the meta position. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323748
In a reaction involving ring substitution of \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{Y}\), the major product is meta isomer. The group ' \(\mathrm{Y}\) ' can be
1 \(-\mathrm{NH}_{2}\)
2 \(-\mathrm{Cl}\)
3 \(-\mathrm{CH}_{3}\)
4 \(-\mathrm{COOH}\)
Explanation:
\(-\mathrm{COOH}\) group is ring deactivating group and \(\mathrm{m}\) - directing group.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323749
Assertion : Benzoic acid does not give Friedel Craft's reaction. Reason : Benzoic acid is obtained by catalytic oxidation of toluene with air in presence of \(\mathrm{Co}-\) \(\mathrm{Mn}\) as catalyst.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The electron-withdrawing nature of the carboxyl group \((-\mathrm{COOH})\) deactivates the benzene ring, preventing compounds like benzoic acid from readily undergoing Friedel-Craft's reactions. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323750
Oxalic acid on heating with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) gives
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323747
Assertion : Nitration of benzoic acid gives \(m-\) nitrobenzoic acid. Reason : Carboxyl group increases the electron density at the meta-position.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The carboxyulic acid group is an electron withdrawing group. It decreases the electron density from ortho and para position and does not increase the electron density from meta position. The decreasing effect is less at meta position. This directs the incoming group to the meta position. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323748
In a reaction involving ring substitution of \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{Y}\), the major product is meta isomer. The group ' \(\mathrm{Y}\) ' can be
1 \(-\mathrm{NH}_{2}\)
2 \(-\mathrm{Cl}\)
3 \(-\mathrm{CH}_{3}\)
4 \(-\mathrm{COOH}\)
Explanation:
\(-\mathrm{COOH}\) group is ring deactivating group and \(\mathrm{m}\) - directing group.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323749
Assertion : Benzoic acid does not give Friedel Craft's reaction. Reason : Benzoic acid is obtained by catalytic oxidation of toluene with air in presence of \(\mathrm{Co}-\) \(\mathrm{Mn}\) as catalyst.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The electron-withdrawing nature of the carboxyl group \((-\mathrm{COOH})\) deactivates the benzene ring, preventing compounds like benzoic acid from readily undergoing Friedel-Craft's reactions. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323750
Oxalic acid on heating with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) gives
323747
Assertion : Nitration of benzoic acid gives \(m-\) nitrobenzoic acid. Reason : Carboxyl group increases the electron density at the meta-position.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The carboxyulic acid group is an electron withdrawing group. It decreases the electron density from ortho and para position and does not increase the electron density from meta position. The decreasing effect is less at meta position. This directs the incoming group to the meta position. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323748
In a reaction involving ring substitution of \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{Y}\), the major product is meta isomer. The group ' \(\mathrm{Y}\) ' can be
1 \(-\mathrm{NH}_{2}\)
2 \(-\mathrm{Cl}\)
3 \(-\mathrm{CH}_{3}\)
4 \(-\mathrm{COOH}\)
Explanation:
\(-\mathrm{COOH}\) group is ring deactivating group and \(\mathrm{m}\) - directing group.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323749
Assertion : Benzoic acid does not give Friedel Craft's reaction. Reason : Benzoic acid is obtained by catalytic oxidation of toluene with air in presence of \(\mathrm{Co}-\) \(\mathrm{Mn}\) as catalyst.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The electron-withdrawing nature of the carboxyl group \((-\mathrm{COOH})\) deactivates the benzene ring, preventing compounds like benzoic acid from readily undergoing Friedel-Craft's reactions. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323750
Oxalic acid on heating with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) gives
323747
Assertion : Nitration of benzoic acid gives \(m-\) nitrobenzoic acid. Reason : Carboxyl group increases the electron density at the meta-position.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The carboxyulic acid group is an electron withdrawing group. It decreases the electron density from ortho and para position and does not increase the electron density from meta position. The decreasing effect is less at meta position. This directs the incoming group to the meta position. So the option (3) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323748
In a reaction involving ring substitution of \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{Y}\), the major product is meta isomer. The group ' \(\mathrm{Y}\) ' can be
1 \(-\mathrm{NH}_{2}\)
2 \(-\mathrm{Cl}\)
3 \(-\mathrm{CH}_{3}\)
4 \(-\mathrm{COOH}\)
Explanation:
\(-\mathrm{COOH}\) group is ring deactivating group and \(\mathrm{m}\) - directing group.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323749
Assertion : Benzoic acid does not give Friedel Craft's reaction. Reason : Benzoic acid is obtained by catalytic oxidation of toluene with air in presence of \(\mathrm{Co}-\) \(\mathrm{Mn}\) as catalyst.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The electron-withdrawing nature of the carboxyl group \((-\mathrm{COOH})\) deactivates the benzene ring, preventing compounds like benzoic acid from readily undergoing Friedel-Craft's reactions. So the option (2) is correct.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323750
Oxalic acid on heating with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) gives
