What happens when an acid reacts with a metal oxide? Explain with the help of an example. Write a balanced equation for the reaction involved.

(a). What happens when an acid reacts with a metal carbonate? Explaini with the help of an example. Write chemical equation of the reaction involved. (b). What happens when carbon dioxide gas is passed through lime water: (i). For a short time? (ii). for a considerable time? Write equations of teh reactions involved.

What happens when metal oxide reacts with acid ?

What is meant by pair production ? Explain with the help of an example and a balanced equation.

(a). What happens when zinc granules are heated with sodium hydroxide solution? Write equation of the reaction which takes place. (b). What happens when bases react with non-metal oxides? Explain with the help of an example. What does this reaction tell us about the natrue of non-metal oxides?

What happen when dihydrogen reacts with (b) Sodium metal ? Explain.

(a). What happens when dilute hydrochloric acid is added to sodium carbonate? Write a balanced chemical equation of the reaction involved. (b). Which gas is liberated when dilute hydrochloric acid reacts with sodium carbonate? How will you test for the presence of this gas?