Substance is a yellowish-white deliquescent solid, which sublimes and has a vapour density of reacts violently with water, to form solution . A sample of gave a curdy white precipitate on the addition of dilute and solution. However, the precipitate readily dissolved on the addition of dilute , though a gelatinous white precipitate was formed in its place. was filtered off and dissolved in excess , forming a clear solution . When was passed into compound was reprecipitated. Substance dissolved unchanged in dry ether and on reaction with , one of the two products or, was formed, depending on whether the was present in excess or not. Qualitative analysis of the solution gave a white gelatinous precipitate in Group . When of was dissolved in water and treated with -hydroxyquinoline, of precipitate was obtained. Identify the compounds to and give equations for all of the reactions.
