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

323470 Identify prodcut \({\text{B}}\) in the following reaction
\({\text{Propanone}}\xrightarrow{{{\text{Ba(OH}}{{\text{)}}_{\text{2}}}}}{\text{A}}\xrightarrow[{{\text{ - }}{{\text{H}}_{\text{2}}}{\text{O}}}]{\Delta }{\text{B}}\)

1 2-Methylpentan-3-one
2 4-Hydroxy-4-methylpentan-2-one
3 4-Methylpent-3-en-2-one
4 2-Methylpent-2-en-4-one
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323471 Read the Assertion and Reason carefully and mark correct option.
Assertion :
Acetal / ketal is stable in basic medium.
Reason :
The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

1 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
2 Assertion is false but Reason is true.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are true and Reason is the correct explanation of Assertion .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323472 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Acidity of \(\alpha\)-hydrogens of aldehydes and ketones is responsible for Aldol reaction.
Statement B :
Reaction between benzaldehyde and ethanal will not give cross-Aldol product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323473 What is the number of different products formed when mixture of ethanal and propanal reacts with aq. \(\mathrm{NaOH}\) after warming?

1 1
2 3
3 2
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323470 Identify prodcut \({\text{B}}\) in the following reaction
\({\text{Propanone}}\xrightarrow{{{\text{Ba(OH}}{{\text{)}}_{\text{2}}}}}{\text{A}}\xrightarrow[{{\text{ - }}{{\text{H}}_{\text{2}}}{\text{O}}}]{\Delta }{\text{B}}\)

1 2-Methylpentan-3-one
2 4-Hydroxy-4-methylpentan-2-one
3 4-Methylpent-3-en-2-one
4 2-Methylpent-2-en-4-one
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323471 Read the Assertion and Reason carefully and mark correct option.
Assertion :
Acetal / ketal is stable in basic medium.
Reason :
The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

1 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
2 Assertion is false but Reason is true.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are true and Reason is the correct explanation of Assertion .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323472 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Acidity of \(\alpha\)-hydrogens of aldehydes and ketones is responsible for Aldol reaction.
Statement B :
Reaction between benzaldehyde and ethanal will not give cross-Aldol product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323473 What is the number of different products formed when mixture of ethanal and propanal reacts with aq. \(\mathrm{NaOH}\) after warming?

1 1
2 3
3 2
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323470 Identify prodcut \({\text{B}}\) in the following reaction
\({\text{Propanone}}\xrightarrow{{{\text{Ba(OH}}{{\text{)}}_{\text{2}}}}}{\text{A}}\xrightarrow[{{\text{ - }}{{\text{H}}_{\text{2}}}{\text{O}}}]{\Delta }{\text{B}}\)

1 2-Methylpentan-3-one
2 4-Hydroxy-4-methylpentan-2-one
3 4-Methylpent-3-en-2-one
4 2-Methylpent-2-en-4-one
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323471 Read the Assertion and Reason carefully and mark correct option.
Assertion :
Acetal / ketal is stable in basic medium.
Reason :
The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

1 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
2 Assertion is false but Reason is true.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are true and Reason is the correct explanation of Assertion .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323472 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Acidity of \(\alpha\)-hydrogens of aldehydes and ketones is responsible for Aldol reaction.
Statement B :
Reaction between benzaldehyde and ethanal will not give cross-Aldol product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323473 What is the number of different products formed when mixture of ethanal and propanal reacts with aq. \(\mathrm{NaOH}\) after warming?

1 1
2 3
3 2
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323470 Identify prodcut \({\text{B}}\) in the following reaction
\({\text{Propanone}}\xrightarrow{{{\text{Ba(OH}}{{\text{)}}_{\text{2}}}}}{\text{A}}\xrightarrow[{{\text{ - }}{{\text{H}}_{\text{2}}}{\text{O}}}]{\Delta }{\text{B}}\)

1 2-Methylpentan-3-one
2 4-Hydroxy-4-methylpentan-2-one
3 4-Methylpent-3-en-2-one
4 2-Methylpent-2-en-4-one
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323471 Read the Assertion and Reason carefully and mark correct option.
Assertion :
Acetal / ketal is stable in basic medium.
Reason :
The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

1 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
2 Assertion is false but Reason is true.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are true and Reason is the correct explanation of Assertion .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323472 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Acidity of \(\alpha\)-hydrogens of aldehydes and ketones is responsible for Aldol reaction.
Statement B :
Reaction between benzaldehyde and ethanal will not give cross-Aldol product.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323473 What is the number of different products formed when mixture of ethanal and propanal reacts with aq. \(\mathrm{NaOH}\) after warming?

1 1
2 3
3 2
4 4