To solve this problem, we need to analyze the elimination reaction of 2-Bromo-pentane to form pent-2-ene.$\newline$Let's break down the reaction and the options provided:$\newline$1. The reaction involves the elimination of a hydrogen halide (HBr) from 2-Bromo-pentane.$\newline$2. This type of reaction is known as a $\beta$-elimination reaction because the hydrogen is removed from the $\beta$-carbon.$\newline$