Neutralizing value of which of the following liming material is highest?

Correct option is B

· The neutralizing value (NV) of a liming material refers to its ability to neutralize soil acidity.
· Among the options:
· CaO (Quick lime) has the highest neutralizing value (~179% NV).
· CaCO₃ (Limestone) has ~100% NV.
· CaMg(CO₃)₂ (Dolomite) has ~109% NV.
· CaSiO₂ (Calcium silicate) is lower.
· CaO is more reactive and fast-acting, making it the most potent liming agent.