NEET2023ChemistryAldehydes and KetonesActual
Reagents which can be used to convert alcohols to carboxylic acids, are (A) CrO ₃- H ₂ SO ₄ (B) K ₂ Cr ₂ O ₇+ H ₂ SO ₄ (C) KMnO ₄+ KOH / H ₃ O ⁺ (D) Cu , 573 ~K (E) CrO ₃, ( CH ₃ CO )₂ O Choose the most appropriate answer from the options given below.
Options
- A(A),(B) and (C) only
- B(A),(B) and (E) only
- C(B),(C) and (D) only
- D(B),(D) and (E) only
Correct answer
A. (A),(B) and (C) only
Step-by-step solution
- R - CH ₂ OH 1. alkaline KMnO ₄ 2 H ₃ O ⁺ R - COOH - CH ₃ ( CH ₂ )₈ CH ₂ OH CrO ₃ H ₂ SO ₄ Jones reagent CH ₃ ( CH ₂ )₈ COOH - Alcohols can be easily oxidised by K ₂ Cr ₂ O ₇ and CrO ₃ in acidic medium.