Dolomite powder is applied in some agricultural lands. The purpose of applying it is to-
Correct Answer : a ) Increase the pH of the soilExplanation :
Dolomite is an anhydrous carbonate mineral made of Calcium magnesium carbonate. Dolomite powder is used in agricultural lands to increase the pH of the soil i.e. it reduces the soil acidity. It is also used to adjust magnesium (important plant nutrient) deficiency in the soil.
Dolomite powder is also used in construction industry because of its higher strength and hardness. It is also used for acid neutralization in chemical industry. It is used as a source of magnesia (MgO). It also serves as an oil and gas reservoir rock. Dolomite powder is also used un glassmaking industry.
Hence, option (a) is correct.
This question was asked in GK paper of CDS II 2016.