Q. Why is calamine solution put on the ant sting?
Ans. When an ant bites, it injects formic acid into the skin. The effect of acid can be neutralized by applying calamine solution which is basic in nature.
Ans. Excessive use of makes the soil acidic, which is not suitable for the growth of the plants . Hence we treat the soil with bases like calcium oxide to neutralize of acid.
Q.The factory waste is treated with basic substances before disposing it?
Ans. The wastes of factories contain acids. If they are allowed to flow into the water bodies, then they are harmful to the aquatic life. Therefore, factory waste are treated with basic solutions.
Q.What is the chemical name of the following:
Common name Chemical name
Quick lime Calcium oxide
Slaked lime calcium hydroxide
Baking soda sodium hydrogen carbonate
Q. What is the of milk of magnesia?
Ans. The chemical composition of milk of magnesia is magnesium hydroxide.
Ans. The chemical composition of calamine solution is zinc carbonate.