Why radicals are highly reactive?

Explanation:

Radicals are so reactive because they require so much energy to form.

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.