Question

In a group, basic nature_____ from top to bottom.

• A. decreases
• B. increases
• C. constant
• D. none of these

Answer 1

The correct option is B increases

Basic nature means it should be capable of leaving $O{H}^{-}$ when the respective hydroxides are dissolved in the water.Leaving behind $O{H}^{-}$ in the sense it has to donate electrons that is metallic character.Hence as the size increases in a group even giving electrons also increases.Hence even basic nature increases down the group.