Chemical Reactions of Aldehydes and Ketones
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323654 Tischenko reaction is a modification of

1 Cannizaro reaction
2 Aldol condensation
3 Claisen condesation
4 Pinacol - pinacolone reaction
JEE - 2014
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323655 Assertion :
p-N,N-dimethylaminobenzaldehyde undergoes benzoin condensation.
Reason :
The aldehydic \((-\mathrm{CHO})\) group is meta directing.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323656 Ketones react with \(\mathrm{Mg}-\mathrm{Hg}\) over water gives

1 pinacolone
2 pinacols
3 alcohols
4 None of these
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323657 \({{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{COCO}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\xrightarrow{{{\text{O}}{{\text{H}}^{\text{ - }}}}}{\left( {{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}} \right)_{\text{2}}}{\text{C(OH)COOH}}\). The above reaction is known as

1 Beckmann rearrangement
2 Benzilic acid rearrangement
3 Benzoin condensation
4 Aldol condensation
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323654 Tischenko reaction is a modification of

1 Cannizaro reaction
2 Aldol condensation
3 Claisen condesation
4 Pinacol - pinacolone reaction
JEE - 2014
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323655 Assertion :
p-N,N-dimethylaminobenzaldehyde undergoes benzoin condensation.
Reason :
The aldehydic \((-\mathrm{CHO})\) group is meta directing.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323656 Ketones react with \(\mathrm{Mg}-\mathrm{Hg}\) over water gives

1 pinacolone
2 pinacols
3 alcohols
4 None of these
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323657 \({{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{COCO}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\xrightarrow{{{\text{O}}{{\text{H}}^{\text{ - }}}}}{\left( {{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}} \right)_{\text{2}}}{\text{C(OH)COOH}}\). The above reaction is known as

1 Beckmann rearrangement
2 Benzilic acid rearrangement
3 Benzoin condensation
4 Aldol condensation
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323654 Tischenko reaction is a modification of

1 Cannizaro reaction
2 Aldol condensation
3 Claisen condesation
4 Pinacol - pinacolone reaction
JEE - 2014
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323655 Assertion :
p-N,N-dimethylaminobenzaldehyde undergoes benzoin condensation.
Reason :
The aldehydic \((-\mathrm{CHO})\) group is meta directing.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323656 Ketones react with \(\mathrm{Mg}-\mathrm{Hg}\) over water gives

1 pinacolone
2 pinacols
3 alcohols
4 None of these
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323657 \({{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{COCO}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\xrightarrow{{{\text{O}}{{\text{H}}^{\text{ - }}}}}{\left( {{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}} \right)_{\text{2}}}{\text{C(OH)COOH}}\). The above reaction is known as

1 Beckmann rearrangement
2 Benzilic acid rearrangement
3 Benzoin condensation
4 Aldol condensation
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323654 Tischenko reaction is a modification of

1 Cannizaro reaction
2 Aldol condensation
3 Claisen condesation
4 Pinacol - pinacolone reaction
JEE - 2014
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323655 Assertion :
p-N,N-dimethylaminobenzaldehyde undergoes benzoin condensation.
Reason :
The aldehydic \((-\mathrm{CHO})\) group is meta directing.

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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323656 Ketones react with \(\mathrm{Mg}-\mathrm{Hg}\) over water gives

1 pinacolone
2 pinacols
3 alcohols
4 None of these
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323657 \({{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}{\text{COCO}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\xrightarrow{{{\text{O}}{{\text{H}}^{\text{ - }}}}}{\left( {{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}} \right)_{\text{2}}}{\text{C(OH)COOH}}\). The above reaction is known as

1 Beckmann rearrangement
2 Benzilic acid rearrangement
3 Benzoin condensation
4 Aldol condensation
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