Question

Base and acid definition for class 10 icse

Answer 1

Base is a substance which releases OH- ions when dissolved in water.
 
Acid is a substance which releases H+ ions when dissolved in water.

Answer 2

base: any thing that tastes bitter and feels soapy to hand . reacts with acid to form salt and water. turns red litmus to blue, ex , soap


acid: any thing that tastes sour and reacts with base to form salt and water. turns blue litmus to red. citric acid