Predict all the alkenes that would be formed by dehydrohalogenation of the following halides with sodium ethoxide in ethanol and identify the major alkene:
(i) 1-Bromo-1-methylcyclohexane , (ii) 2-Chloro-2-methylbutane
(iii) 2,2,3-Trimethyl-3-bromopentane

Explanation

To solve the problem of predicting the alkenes formed by dehydrohalogenation of the given halides with sodium ethoxide in ethanol, we will analyze each compound step by step.

### Step 1: Analyze 1-Bromo-1-methylcyclohexane

1. **Structure**: The structure of 1-bromo-1-methylcyclohexane can be represented as follows:
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Br
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