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

323448 Assertion :
Aldehydes and ketones show condensation reactions.
Reason :
The hydrogen atoms attached to \(\alpha\) carbon of aldehydes and ketones are reactive.

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

323449 3-hydroxybutanal is formed when \(\mathrm{X}\) reacts with \(\mathrm{Y}\) in dilute \(\mathrm{Z}\) solution. What are \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\) ?
\(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{X}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Y}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Z}}\)

1 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CO}, \quad\) dil. \(\mathrm{NaOH}\)
2 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaCl}\)
3 \({\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,{\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,\,\,\,{\text{dil}}.{\text{HCl }}\)
4 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaOH}\)
AIIMS - 2008
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323450 The value of \(({\rm{m}} + {\rm{n}})\) in the following reaction is ____.
supporting img

1 3
2 5
3 7
4 9
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323451 Aldol condensation does not occur between

1 two different aldehydes
2 two different ketone
3 an aldehyde and ketone
4 an aldehyde and an ester
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323452 Aldol is

1 \({\rm{\beta }} - {\rm{hydroxybutyraldehyde}}\)
2 \({\rm{\alpha }} - {\rm{hydroxybutanal}}\)
3 \({\rm{\beta }} - {\rm{hydroxypropanal}}\)
4 none of the above.
NEET DIGITAL LIBRARY
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323448 Assertion :
Aldehydes and ketones show condensation reactions.
Reason :
The hydrogen atoms attached to \(\alpha\) carbon of aldehydes and ketones are reactive.

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

323449 3-hydroxybutanal is formed when \(\mathrm{X}\) reacts with \(\mathrm{Y}\) in dilute \(\mathrm{Z}\) solution. What are \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\) ?
\(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{X}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Y}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Z}}\)

1 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CO}, \quad\) dil. \(\mathrm{NaOH}\)
2 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaCl}\)
3 \({\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,{\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,\,\,\,{\text{dil}}.{\text{HCl }}\)
4 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaOH}\)
AIIMS - 2008
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323450 The value of \(({\rm{m}} + {\rm{n}})\) in the following reaction is ____.
supporting img

1 3
2 5
3 7
4 9
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323451 Aldol condensation does not occur between

1 two different aldehydes
2 two different ketone
3 an aldehyde and ketone
4 an aldehyde and an ester
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323452 Aldol is

1 \({\rm{\beta }} - {\rm{hydroxybutyraldehyde}}\)
2 \({\rm{\alpha }} - {\rm{hydroxybutanal}}\)
3 \({\rm{\beta }} - {\rm{hydroxypropanal}}\)
4 none of the above.
Join With Us for More Updates
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323448 Assertion :
Aldehydes and ketones show condensation reactions.
Reason :
The hydrogen atoms attached to \(\alpha\) carbon of aldehydes and ketones are reactive.

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

323449 3-hydroxybutanal is formed when \(\mathrm{X}\) reacts with \(\mathrm{Y}\) in dilute \(\mathrm{Z}\) solution. What are \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\) ?
\(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{X}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Y}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Z}}\)

1 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CO}, \quad\) dil. \(\mathrm{NaOH}\)
2 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaCl}\)
3 \({\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,{\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,\,\,\,{\text{dil}}.{\text{HCl }}\)
4 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaOH}\)
AIIMS - 2008
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323450 The value of \(({\rm{m}} + {\rm{n}})\) in the following reaction is ____.
supporting img

1 3
2 5
3 7
4 9
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323451 Aldol condensation does not occur between

1 two different aldehydes
2 two different ketone
3 an aldehyde and ketone
4 an aldehyde and an ester
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323452 Aldol is

1 \({\rm{\beta }} - {\rm{hydroxybutyraldehyde}}\)
2 \({\rm{\alpha }} - {\rm{hydroxybutanal}}\)
3 \({\rm{\beta }} - {\rm{hydroxypropanal}}\)
4 none of the above.
For More Updates join with Us
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323448 Assertion :
Aldehydes and ketones show condensation reactions.
Reason :
The hydrogen atoms attached to \(\alpha\) carbon of aldehydes and ketones are reactive.

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

323449 3-hydroxybutanal is formed when \(\mathrm{X}\) reacts with \(\mathrm{Y}\) in dilute \(\mathrm{Z}\) solution. What are \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\) ?
\(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{X}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Y}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Z}}\)

1 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CO}, \quad\) dil. \(\mathrm{NaOH}\)
2 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaCl}\)
3 \({\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,{\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,\,\,\,{\text{dil}}.{\text{HCl }}\)
4 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaOH}\)
AIIMS - 2008
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323450 The value of \(({\rm{m}} + {\rm{n}})\) in the following reaction is ____.
supporting img

1 3
2 5
3 7
4 9
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323451 Aldol condensation does not occur between

1 two different aldehydes
2 two different ketone
3 an aldehyde and ketone
4 an aldehyde and an ester
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323452 Aldol is

1 \({\rm{\beta }} - {\rm{hydroxybutyraldehyde}}\)
2 \({\rm{\alpha }} - {\rm{hydroxybutanal}}\)
3 \({\rm{\beta }} - {\rm{hydroxypropanal}}\)
4 none of the above.
NEET DIGITAL LIBRARY
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323448 Assertion :
Aldehydes and ketones show condensation reactions.
Reason :
The hydrogen atoms attached to \(\alpha\) carbon of aldehydes and ketones are reactive.

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

323449 3-hydroxybutanal is formed when \(\mathrm{X}\) reacts with \(\mathrm{Y}\) in dilute \(\mathrm{Z}\) solution. What are \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\) ?
\(\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{X}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Y}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{Z}}\)

1 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CO}, \quad\) dil. \(\mathrm{NaOH}\)
2 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaCl}\)
3 \({\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,{\left( {{\text{C}}{{\text{H}}_3}} \right)_2}{\text{CO}},\,\,\,\,\,\,\,{\text{dil}}.{\text{HCl }}\)
4 \(\mathrm{CH}_{3} \mathrm{CHO}, \quad \mathrm{CH}_{3} \mathrm{CHO}, \quad\) dil. \(\mathrm{NaOH}\)
AIIMS - 2008
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323450 The value of \(({\rm{m}} + {\rm{n}})\) in the following reaction is ____.
supporting img

1 3
2 5
3 7
4 9
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323451 Aldol condensation does not occur between

1 two different aldehydes
2 two different ketone
3 an aldehyde and ketone
4 an aldehyde and an ester
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323452 Aldol is

1 \({\rm{\beta }} - {\rm{hydroxybutyraldehyde}}\)
2 \({\rm{\alpha }} - {\rm{hydroxybutanal}}\)
3 \({\rm{\beta }} - {\rm{hydroxypropanal}}\)
4 none of the above.