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 is INCORRECT about Etard’s reaction?
(A) The reaction involves the conversion of Ar-CH3 to Ar-CHO.
(B) The reagent used is chromium oxide in acetic anhydride.
(C) The reaction involves the formation of a chromium complex.
(D) The reaction requires an acid hydrolysis step to obtain Ar-CHO.
Option b – The reagent used is chromium oxide in acetic anhydride.
An acyl chloride (X) reacts with dialkylcadmium (Y) to give 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 has a keto-functional group?
(A) Acrolein
(B) Pinacol
(C) Mesityl oxide
(D) Vanillin
Option c – Mesityl oxide
Compound (X) undergoes alkaline hydrolysis to form a carboxylic acid (Y). Compound (X) is formed when methyl iodide is boiled with an alcoholic solution of KCN. The molecular formula of (Y) is ……….
(A) C₂H4O₂
(B) C3H6O₂
(C) CH₂O2
(D) C3H4O₂
Option a – C₂H4O₂
Which of the following compounds will give a positive iodoform test?
(A) Propan-2-ol
(B) Propionaldehyde
(C) Propan-1-ol
(D) Pentan-3-one
Option a – Propan-2-ol
Succinic acid is an example of ………
(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 point than alcohols of comparable molecular masses. Reason : There is molecular association in aldehydes and ketones arising because to dipole dipole interactions.
(A) Assertion and Reason are true. Reason is correct explanation of Assertion.
(B) Assertion and Reason are true. Reason is not the correct explanation of Assertion.
(C) Assertion is true, Reason is false.
(D) Assertion is false, Reason is true.
Option d – Assertion is false, Reason is true.
Oxidation of which of the following gives ethyl methyl ketone?
(A) Ethanol
(B) Butan-1-ol
(C) Butan-2-ol
(D) 2-Methylpropan-2-ol
Option c – Butan-2-ol
The reagent which does NOT react with both acetone and benzaldehyde is ………
(A) sodium hydrogensulphite
(B) phenyl hydrazine
(C) Fehling’s solution
(D) Schiff’s reagent
Option c – Fehling’s solution
Which of the following will NOT undergo Hell-Volhard-Zelinsky reaction?
(A) CH3-COOH
(B) Br₂CH-COOH
(C) BrCH₂-CH₂-COOH
(D) CH3-CBr2-COOH
Option d – CH3-CBr2-COOH
Benzophenone and benzaldehyde be can distinguished by ……..
(A) Tollens’ solution
(B) Fehling’s solution
(C) Iodoform test
(D) 2,4-DNP solution
Option a – Tollens’ solution
The IUPAC name of crotonaldehyde is ………
(A) but-2-enal
(B) prop-2-enal
(C) 2-methylbutanal
(D) 2,3-dihydroxypropanal
Option a – but-2-enal
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