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

Which order is correct for the decreasing reactivity to ring monobromination of the following compounds underset(I)(C_(6)H_(5)CH_(3)), underset(II)(C_(6)H_(5)COOH),underset(III)(C_(6)H_(6)),underset(IV)(C_(6)H_(5)NO_(2))

Which of the following is correct order of decreasing S N^2 reactivity

Which of the following represent the correct order of decreasing reactivity?

The order of decreasing reactivity towards nitration in the following compound is :

Which of the following is the correct order of decreasing S_(N^(2)) reactivity ?

Which of the following is correct order of reactivity