Arrange the below compounds in the decreasing order of reactivity towards HBr: — Hydrocarbons Chemistry Question

💡 Solution & Explanation

Among the following compounds, the decreasing order of reactivity towards HBr depends upon the ability of substituents attached to it. If the electron-donating group is attached, it will stabilize the carbocation formed. So out of these the electron-donating ability follows the order: 3 3 2 3 OCH CH CH OCH Hence, the correct option is(b).