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) ?
Write word equations and then balanced equations for the reaction taking place when -
$(a)$ dilute sulphuric acid reacts with zinc granules.
$(b)$ dilute hydrochloric acid reacts with magnesium ribbon.
Why should curd and sour substances not be kept in brass and copper vessels ?
What effect does the concentration of $H^+_{(aq)}$ ions have on the nature of the solution ?
Give two important uses of washing soda and baking soda.