Explanation:
Hey there!
Your answer is option B.
Reason:
Base are the substance that produces hydroxyl ion dissolving in water.
Option A(true): The pH value of base is always greater than 7.
Option B (false): A base is considered as alkaline if it dissolves in water only otherwise they are not alkaline.
Option C (true): A base always has few hydrogen ions in it.
Option D(true) : A base has also few hydroxide ions.
Hope it helps!
