Question

Under what soil condition, do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?

• A. If the soil is acidic and improper for cultivation, then to neutralise the acidity of the soil, the farmer would treat the soil with quick lime or slaked lime or chalk
• B. If the soil is basic and improper for cultivation, then to neutralise the basicity of the soil, the farmer would treat the soil with quick lime or slaked lime or chalk.
  
• C. Both $A$ and $B$ correct
• D. None of the above

Answer 1

The correct option is C Both $A$ and $B$ correct

Calcium oxide, calcium hydroxide and calcium carbonate all three are alkaline or basic in nature and these are used by farmers in their fields if they find the soil to be acidic in nature having more of chloride or sulphate ions to neutralize the effect of these ions and to increase the fertility of the soil.