AIPMT 2008 Main Mock Test

The major product of the reaction between an alkene and $\text{HBr}$ in the presence of peroxides is governed by:

In DNA, the complimentary bases are:

Which one the following is most reactive towards electrophilic attack?

An organic compound contains $\text{C},\text{H}$ and $\text{O}$. Its elemental analysis gave $\text{C, 38.71\%}$ and $\text{H, 9.67\%}$. The empirical formula of the compound would be:

In a ${\text{S}}_{N}2$ substitution reaction, which one of the following has the highest relative rate?