What happens when sulphur dioxide is passed through an aqueous solution of Fe(III) salt?

What happens when carbon dioxide is passed through fresh lime water?

What happens when CO_2 is passed through lime water?

What happens when chlorine gas is passed through a hot concentrated solution of NaOH ?

What happens when: SO_3 is passed through water?

What will happen when carbon dioxide is passed through calcium hydroxide.

What happens, when sulphur is treated with conc. HNO_3 ?

In qualitative analysis when H_2S is passed through an aqueous solution of salt acidified with dil. HCl, a black precipitate is obtained. On boiling the precipitate with dil. HNO_3 , it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives _______ .

What happens when a strong current is passed through a semiconductor? Explain.

What happens when: Dilute sulphuric acid is poured on a copper plate?