Give possible explanation for the following : (i) Cyclohexanone forms cyanohydrins in good yield but 2,2,6 trimethyl-cyclohexanone does not .

Explanation

To explain why cyclohexanone forms cyanohydrins in good yield while 2,2,6-trimethylcyclohexanone does not, we can analyze the reactions and the structural differences between the two compounds.

### Step-by-Step Solution:

1. **Understanding the Reactivity of Cyclohexanone**:
- Cyclohexanone (C6H10O) is a simple cyclic ketone with a carbonyl group (C=O) that is relatively accessible for nucleophilic attack.
- When treated with cyanide ion (CN-), it undergoes nucleophilic addition to form a cyanohydrin.

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