Write the structures of major and minor products when 2-bromo-3-methylbutane is heated with potassium hydroxide in ethanol.

Explanation

To solve the problem of determining the major and minor products when 2-bromo-3-methylbutane is heated with potassium hydroxide in ethanol, we can follow these steps:

### Step 1: Understand the Reactants
2-bromo-3-methylbutane has the following structure:
- The carbon chain consists of four carbon atoms with a bromine atom attached to the second carbon and a methyl group attached to the third carbon.

### Step 2: Identify the Reaction Conditions
When heated with potassium hydroxide (KOH) in ethanol, this reaction is a dehydrohalogenation reaction. KOH acts as a strong base, facilitating the elimination of hydrogen bromide (HBr) from the alkyl halide.
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