In aqueous solution soap form ionic micelle which act as emulsifying agent Explain.

an aqueous solution of CuSO_4 is acidic while that of Na_2SO_4 is neutral. Explain.

Roasting of sulphides gives the gas X as a by product. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated. The gas X is

Explain the following Emulsifying agent.

Emulsifier is an agent which

Nitric acid acts only as an oxidising agent while nitrous acid acts both as an oxidising as well as reducing agent. Explain.

Alkali metals are highly reactive due to their low ionization enthalpies. The alkali metal which acts as the strongest reducing agent in aqueous solution is __________.