Concept:Soil acidity is corrected by applying alkaline or liming materials that raise soil pH.
Fertilizers that form acid in the soil cannot be used for this purpose.
Explanation:Wood ash contains alkaline substances such as potassium and calcium carbonates.
These carbonates react with acidic soil and help neutralize it.
Limestone, which is
CaCO3, is a well-known liming material used by farmers.
Calcium phosphosilicate is another basic material, often found in basic slag, that reduces soil acidity.
Ammonium nitrate is written as
NH4NO3.
When added to soil, the ammonium part undergoes nitrification.
This process releases hydrogen ions, shown as
H+, into the soil.
Hydrogen ions increase the acidity of the soil instead of neutralizing it.
Therefore, ammonium nitrate is an acid-forming fertilizer.
It cannot be used to neutralize soil acidity.
Answer:Ammonium nitrate
Option B is the correct choice.