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

323590 A compound (A), \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{Cl}_{2}\), on hydrolysis gives a product (B) which forms a 2, 4-DNP derivative but does not reduce Tollens reagent. The compound (A) has the structure

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{2} \mathrm{Cl}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CCl}_{2} \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHCl}_{2}\)
4 \(\mathrm{ClCH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2} \mathrm{Cl}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323591 Correct statements for the given reaction are :
https://image.cleverb.in/upload/2024/9/12/1726131319273-CB-C-JEE-QN-21-1.png
A. Compound ' B ' is aromatic.
B. The completion of above reaction is very low.
C. 'A' shows tautomerism
D. The bond lengths of \(\mathrm{C}-\mathrm{C}\) in compound B are found to be same.
Choose the correct answer from the options
given below:

1 A, B and C only
2 A, B and D only
3 B, C and D only
4 A, C and D only
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323592 An organic compound (A) does not react with sodium but reacts with \(\mathrm{PCl}_{5}\). (A) also undergoes haloform reaction and gives 3-methylbut - 2-enoic acid on acidification of products. On hydrogenation (A) gives 2-methylpentane. The compound \((\mathrm{A})\) is

1 \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{C}=\mathrm{CHCOCH}_{3}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}\)
4 \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}=\mathrm{CHCOOH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323593 Identify the reagents used for the following conversion
supporting img

1 \[\begin{array}{l}
{\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(aq )}}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,}}\,{\rm{ethylene}}\,{\rm{glycol}}
\end{array}\]
2 \({\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,C = Zn/HCl}}\)
3 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(aq) }}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,ethylene}}\,{\rm{glycol}}
\end{array}\]
4 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,}}\\
{\rm{C = Zn/HCl}}
\end{array}\]
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323590 A compound (A), \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{Cl}_{2}\), on hydrolysis gives a product (B) which forms a 2, 4-DNP derivative but does not reduce Tollens reagent. The compound (A) has the structure

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{2} \mathrm{Cl}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CCl}_{2} \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHCl}_{2}\)
4 \(\mathrm{ClCH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2} \mathrm{Cl}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323591 Correct statements for the given reaction are :
https://image.cleverb.in/upload/2024/9/12/1726131319273-CB-C-JEE-QN-21-1.png
A. Compound ' B ' is aromatic.
B. The completion of above reaction is very low.
C. 'A' shows tautomerism
D. The bond lengths of \(\mathrm{C}-\mathrm{C}\) in compound B are found to be same.
Choose the correct answer from the options
given below:

1 A, B and C only
2 A, B and D only
3 B, C and D only
4 A, C and D only
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323592 An organic compound (A) does not react with sodium but reacts with \(\mathrm{PCl}_{5}\). (A) also undergoes haloform reaction and gives 3-methylbut - 2-enoic acid on acidification of products. On hydrogenation (A) gives 2-methylpentane. The compound \((\mathrm{A})\) is

1 \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{C}=\mathrm{CHCOCH}_{3}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}\)
4 \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}=\mathrm{CHCOOH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323593 Identify the reagents used for the following conversion
supporting img

1 \[\begin{array}{l}
{\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(aq )}}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,}}\,{\rm{ethylene}}\,{\rm{glycol}}
\end{array}\]
2 \({\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,C = Zn/HCl}}\)
3 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(aq) }}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,ethylene}}\,{\rm{glycol}}
\end{array}\]
4 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,}}\\
{\rm{C = Zn/HCl}}
\end{array}\]
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323590 A compound (A), \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{Cl}_{2}\), on hydrolysis gives a product (B) which forms a 2, 4-DNP derivative but does not reduce Tollens reagent. The compound (A) has the structure

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{2} \mathrm{Cl}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CCl}_{2} \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHCl}_{2}\)
4 \(\mathrm{ClCH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2} \mathrm{Cl}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323591 Correct statements for the given reaction are :
https://image.cleverb.in/upload/2024/9/12/1726131319273-CB-C-JEE-QN-21-1.png
A. Compound ' B ' is aromatic.
B. The completion of above reaction is very low.
C. 'A' shows tautomerism
D. The bond lengths of \(\mathrm{C}-\mathrm{C}\) in compound B are found to be same.
Choose the correct answer from the options
given below:

1 A, B and C only
2 A, B and D only
3 B, C and D only
4 A, C and D only
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323592 An organic compound (A) does not react with sodium but reacts with \(\mathrm{PCl}_{5}\). (A) also undergoes haloform reaction and gives 3-methylbut - 2-enoic acid on acidification of products. On hydrogenation (A) gives 2-methylpentane. The compound \((\mathrm{A})\) is

1 \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{C}=\mathrm{CHCOCH}_{3}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}\)
4 \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}=\mathrm{CHCOOH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323593 Identify the reagents used for the following conversion
supporting img

1 \[\begin{array}{l}
{\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(aq )}}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,}}\,{\rm{ethylene}}\,{\rm{glycol}}
\end{array}\]
2 \({\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,C = Zn/HCl}}\)
3 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(aq) }}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,ethylene}}\,{\rm{glycol}}
\end{array}\]
4 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,}}\\
{\rm{C = Zn/HCl}}
\end{array}\]
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323590 A compound (A), \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{Cl}_{2}\), on hydrolysis gives a product (B) which forms a 2, 4-DNP derivative but does not reduce Tollens reagent. The compound (A) has the structure

1 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{2} \mathrm{Cl}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CCl}_{2} \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHCl}_{2}\)
4 \(\mathrm{ClCH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2} \mathrm{Cl}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323591 Correct statements for the given reaction are :
https://image.cleverb.in/upload/2024/9/12/1726131319273-CB-C-JEE-QN-21-1.png
A. Compound ' B ' is aromatic.
B. The completion of above reaction is very low.
C. 'A' shows tautomerism
D. The bond lengths of \(\mathrm{C}-\mathrm{C}\) in compound B are found to be same.
Choose the correct answer from the options
given below:

1 A, B and C only
2 A, B and D only
3 B, C and D only
4 A, C and D only
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323592 An organic compound (A) does not react with sodium but reacts with \(\mathrm{PCl}_{5}\). (A) also undergoes haloform reaction and gives 3-methylbut - 2-enoic acid on acidification of products. On hydrogenation (A) gives 2-methylpentane. The compound \((\mathrm{A})\) is

1 \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{C}=\mathrm{CHCOCH}_{3}\)
2 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOCH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}\)
4 \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}=\mathrm{CHCOOH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323593 Identify the reagents used for the following conversion
supporting img

1 \[\begin{array}{l}
{\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(aq )}}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,}}\,{\rm{ethylene}}\,{\rm{glycol}}
\end{array}\]
2 \({\rm{A = LiAl}}{{\rm{H}}_{\rm{4}}}{\rm{,\;B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,C = Zn/HCl}}\)
3 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(aq) }}}}{\rm{,}}\\
{\rm{C = N}}{{\rm{H}}_{\rm{2}}} - {\rm{N}}{{\rm{H}}_{\rm{2}}}{\rm{/KOH,ethylene}}\,{\rm{glycol}}
\end{array}\]
4 \[\begin{array}{l}
{\rm{A = DIBAL}} - {\rm{H,B = NaO}}{{\rm{H}}_{{\rm{(alc) }}}}{\rm{,}}\\
{\rm{C = Zn/HCl}}
\end{array}\]