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)?

Do basic solutions also have H+ (aq) ions? If yes, then why are these basic?

What effect does the concentration of H+ (aq) ions have on the nature of the solution?

You have two solutions, A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic?

You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?

How is the concentration of hydroxide ions (OH–) affected when excess base is dissolved in a solution of sodium hydroxide?