Neopentyl bromide is heated with an alcoholic `KOH` solution. The major alkene formed is

Ethyl bromide on heating with alcoholic KOH solution gives

When ethyl bromide is treated with alcoholic KOH, results

How does ethyl bromide react with alcoholic KOH solution ?

Ethyl bromide on treatment with alcoholic KOH gives

2-Bromopentane is treated with alcoholic KOH solution. The major product formed in this reaction and the type of reaction respectively are