`CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C )-CHO` shows Cannizzaro's reaction due to

Options

A. Carbon is bounded by 3 methyl groups
B. Absence of `alpha`-hydrogen atom
C. Due to steric effect
D. None of these

Explanation

To determine why the compound \( CH_3C(CH_3)_2CHO \) (which is a branched aldehyde) shows Cannizzaro's reaction, we can follow these steps:

### Step 1: Identify the Structure of the Compound
The given compound is \( CH_3C(CH_3)_2CHO \). This indicates that it is a branched aldehyde with a carbonyl group (C=O) and a formyl group (–CHO).

### Step 2: Understand Cannizzaro's Reaction
Cannizzaro's reaction is a redox reaction that occurs in aldehydes that do not have alpha hydrogen atoms. In this reaction, one molecule of the aldehyde is oxidized to a carboxylic acid, while another molecule is reduced to an alcohol.

### Step 3: Check for Alpha Hydrogen Atoms
To determine if the compound can undergo Cannizzaro's reaction, we need to check if there are any alpha hydrogen atoms present. Alpha hydrogen atoms are the hydrogen atoms attached to the carbon adjacent to the carbonyl carbon.

In the structure \( CH_3C(CH_3)_2CHO \):
- The carbon adjacent to the carbonyl carbon (the carbon in the –CHO group) is bonded to three methyl groups (–CH3).
- Since all the adjacent carbons are fully substituted with methyl groups, there are no hydrogen atoms attached to the alpha carbon.

### Step 4: Conclusion
Since the compound \( CH_3C(CH_3)_2CHO \) lacks alpha hydrogen atoms, it is unable to undergo aldol condensation and instead will undergo Cannizzaro's reaction. The steric hindrance caused by the bulky methyl groups also prevents the formation of any alpha hydrogen.

### Final Answer
The compound \( CH_3C(CH_3)_2CHO \) shows Cannizzaro's reaction due to the absence of alpha hydrogen atoms.

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