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Aldehydes, Ketones and Carboxylic Acids

Oxidation, Friedel-Crafts and Ozonolysis Reactions

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Matching organic reaction structures to reagents/conditions

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2024 1 question

1 Aldehydes, Ketones and Carboxylic Acids Hard

Match List-I (Reaction, shown as structures) with List-II (Reagents/Condition) for the given organic transformations.

Pick the matching item from Column II for each row.
Column I
- A. - Match for A
- B. - Match for B
- C. - Match for C
- D. - Match for D
Column II
- I. $C_6H_5COCl$ / Anhyd. $AlCl_3$
- II. $CrO_3$
- III. $KMnO_4$/$KOH$, $\Delta$
- IV. (i) $O_3$ (ii) $Zn$-$H_2O$
Correct answer: A → IV, B → I, C → II, D → III

(A) Cleavage of the C=C bond to give two molecules of cyclohexanone: (i) $O_3$ (ii) $Zn-H_2O$ – ozonolysis
(B) Benzene to benzophenone: benzoyl chloride / anhyd. $AlCl_3$ – Friedel-Crafts acylation
(C) Cyclohexanol to cyclohexanone: $CrO_3$ – mild oxidation
(D) Ethylbenzene side chain to $-COOK$: $KMnO_4$/KOH, $\Delta$ – strong oxidation
Correct match: A-IV, B-I, C-II, D-III.