Precipitation of Salt

Selective Precipitation, Solubility OF Salt OF Acids in Different Cases || Equilibrium Involving Complex Formation

Partial precipitation of Mn^(2+) as Mn(OH)_(2) occurs with ammonia solution but the precipitate is soluble in ammonium salts. Explain?

A metal salt MX when exposed to light splits up to form metal M and a gas X_(2) . Metal M is used in making ornaments whereas gas X_(2) is used in making bleaching powder. The salt MX is itself used in black and white photography. (a) What do you think metal M is ? (b) What could be gas X_(2) ? (c) Name the metal salt MX. (d) Name any two salt solutions which on mixing together can produce a precipitate of salt MX. (e) What type of chemical reaction takes place when salt MX is exposed to light ? Write the equation of the reaction.

When does a salt get precipitated in solution ?