Dialkyl cadmium is used to prepare ketones from acid chlorides and not from Grignard reagents. Assign reason.

Explanation

To understand why dialkyl cadmium is used to prepare ketones from acid chlorides, while Grignard reagents cannot be used for the same purpose, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Formation of Dialkyl Cadmium**:
- Dialkyl cadmium (R₂Cd) is synthesized by reacting cadmium chloride (CdCl₂) with two moles of a Grignard reagent (R-Mg-X) in the presence of dry ether.
- The reaction can be represented as:
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