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Aldehyde Ketone and Carboxylic Acid mcq. We covered all the Aldehyde Ketone and Carboxylic Acid mcq in this post for free so that you can practice well for the exam.
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mcq on Aldehyde Ketone and Carboxylic Acid for NEET Students
Which of the following statements about the Etard reaction is incorrect?
a) It converts Ar-CH₃ into Ar-CHO
b) Chromium oxide in acetic anhydride is used as the reagent
c) A chromium complex is formed during the reaction
d) Acidic hydrolysis is necessary to produce Ar-CHO
Option b – Chromium oxide in acetic anhydride is used as the reagent
An acyl chloride (X) reacts with dialkylcadmium (Y) to form 1-phenylpropan-2-one. Identify X and Y respectively.
a) Acetyl chloride and dibenzylcadmium
b) Benzoyl chloride and dibenzylcadmium
c) Acetyl chloride and dimethylcadmium
d) Benzoyl chloride and diethylcadmium
Option a – Acetyl chloride and dibenzylcadmium
Which of the following compounds contains a ketone group?
a) Acrolein
b) Pinacol
c) Mesityl oxide
d) Vanillin
Option c – Mesityl oxide
A compound (X), formed by boiling methyl iodide with alcoholic KCN, undergoes alkaline hydrolysis to form a carboxylic Acid (Y). What is the Molecular formula of (Y)?
a) C₂H₄O₂
b) C₃H₆O₂
c) CH₂O₂
d) C₃H₄O₂
Option a – C₂H₄O₂
Which of the following substances will respond positively to the iodoform test?
a) Propan-2-ol
b) Propionaldehyde
c) Propan-1-ol
d) Pentan-3-one
Option a – Propan-2-ol
Succinic Acid belongs to which of the following categories?
a) Aliphatic monocarboxylic Acid
b) Aliphatic dicarboxylic Acid
c) Aromatic monocarboxylic Acid
d) Aromatic dicarboxylic Acid
Option b – Aliphatic dicarboxylic Acid
Assertion: Aldehydes and ketones have higher boiling points than comparable Alcohols.
Reason: Dipole-dipole interactions lead to Molecular association in aldehydes and ketones.
a) Both Assertion and Reason are correct, and Reason explains Assertion
b) Both Assertion and Reason are correct, but Reason does not explain Assertion
c) Assertion is true, but Reason is false
d) Assertion is false, but Reason is true
Option d – Assertion is false, but Reason is true
Oxidation of which of the following yields ethyl methyl ketone?
a) Ethanol
b) Butan-1-ol
c) Butan-2-ol
d) 2-Methylpropan-2-ol
Option c – Butan-2-ol
Which of the following reagents does not react with either acetone or benzaldehyde?
a) Sodium hydrogen sulphite
b) Phenyl hydrazine
c) Fehling’s solution
d) Schiff’s reagent
Option c – Fehling’s solution
Which compound will not undergo the Hell-Volhard-Zelinsky reaction?
a) CH₃COOH
b) Br₂CHCOOH
c) BrCH₂CH₂COOH
d) CH₃CBr₂COOH
Option d – CH₃CBr₂COOH
Benzophenone and benzaldehyde can be differentiated by which reagent?
a) Tollen’s reagent
b) Fehling’s reagent
c) Iodoform test
d) 2,4-DNP solution
Option a – Tollen’s reagent
What is the IUPAC name of crotonaldehyde?
a) But-2-enal
b) Prop-2-enal
c) 2-Methylbutanal
d) 2,3-Dihydroxypropanal
Option a – But-2-enal
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