Which of the following order is correct for the decreasing reactivity to ring monobromination of the following compounds?

Options

A. ` I gt II gt III gt IV`
B. `I gt III gt II gt IV`
C. `II gt III gt IV gt I`
D. `III gt I gt III gt IV`

Answer

B

Explanation

Bromination of arenes is an electrophilic substitution reaction. The higher the electron density on the benzene ring, more is the ease with which the ring undergoes substitution. The presence of +R effect increases the reactivity while -R effect decreases it
`NO_(2)` is more deactivating than `-COOH` since N is +vely charged and withdraws more electrons form benzene than `-COOH`