Which one of the following can be oxidised to the corresponding carbonyl compound?

Question

TopperSquare Expert · Accepted Answer

The correct answer is Option (A): 2-hydroxy propane. 1. **Reaction Principle:** The oxidation of alcohols involves the formation of a carbon-oxygen double bond with the cleavage of an O-H and a C-H bond. 
   - **Primary Alcohols** ($RCH_2OH$) are oxidised to **Aldehydes** ($RCHO$).
   - **Secondary Alcohols** ($R_2CHOH$) are oxidised to **Ketones** ($R_2C=O$).
   - **Tertiary Alcohols** ($R_3COH$) do not undergo oxidation easily because they lack a hydrogen atom on the carbon bearing the hydroxyl group. Under strong conditions, they undergo cleavage to form mixtures of carboxylic acids containing fewer carbon atoms.
2. **Analysis of Options:**
   - **2-hydroxy propane (Isopropyl alcohol):** This is a secondary alcohol ($CH_3-CH(OH)-CH_3$). Upon oxidation (e.g., with $CrO_3$), it yields **Acetone** ($CH_3-CO-CH_3$), which is a carbonyl compound.
   - **Ortho-nitro phenol:** Phenols are generally difficult to oxidise to simple carbonyl compounds; stronger oxidation yields quinones.
   - **Propane:** An alkane; controlled oxidation is required to form alcohols or aldehydes, but it is not the standard method for preparing carbonyls compared to alcohol oxidation.
   - **2-methyl-2-hydroxy propane (tert-Butyl alcohol):** This is a tertiary alcohol and does not oxidise to a corresponding carbonyl compound.
3. **Conclusion:** 2-hydroxy propane is the only compound listed that readily oxidises to a corresponding carbonyl compound (a ketone) without breaking the carbon chain.

Which one of the following can be oxidised to the corresponding carbonyl compound?

Step-by-Step Solution

Exam Context & Concepts Covered

Everything you need to crack NEET

Track Your Progress

Platform Features

15,000+ MCQs

AI Analytics

Detailed Solutions