18. NCERT Exemplar IX

 

Farmers can convert acidic soil to neutral soil by adding a small quantity of soda limeash limequick lime or slaked lime solution. The acidicalkaline neutral nature of lime neutralizes the soil's acidity. Quick lime can also be used to neutralize the acidic soil, which is known as calcium hydroxidecalcium oxide calcium carbonate. Calcium oxide neutralizes the soil as it is neutralacidicbasic.