How is the concentration of hydronium ions $(H_3O^+)$ affected when a solution of an acid is diluted?

You have two solutions,$A$ and $B$. The $pH$ of solution $A$ is $6$ and the $pH$ of solution $B$ is $8$. Which solution has a higher hydrogen ion concentration? Which of these is acidic and which one is basic?

Under what soil condition do you think a farmer would treat the soil of his fields with quick lime $(CaO)$,slaked lime $(Ca(OH)_2)$,or chalk $(CaCO_3)$?

Why does an aqueous solution of an acid conduct electricity?

$10 \,mL$ of a solution of $NaOH$ is found to be completely neutralized by $8 \,mL$ of a given solution of $HCl$. If we take $20 \,mL$ of the same solution of $NaOH$,the amount of $HCl$ solution (the same solution as before) required to neutralize it will be ...... $mL$.

Which one of the following types of medicines is used for treating indigestion?