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

Explanation

Dehydrohalogenation occurs giving methylbutenes as reaction products.
`CH_(3)-overset(CH_(3))overset(|)(CH)-underset(Br)underset(|)CH-CH_(3)overset(alc.KOH)tounderset("2-Methyl-2-butene (major)")(CH_(3)-overset(CH_(3))overset(|)(C)=CH-CH_(3))tounderset("3-Methyl-1-butene (minor)")(CH_(3)-overset(CH_(3))overset(|)CH-CH=CH_(2))`