A compound in the hydrated state gives an ionic oxide when heated strongly. Its aqueous solution does not give any precipitate with H_(2)S, however, it does give white ppt. with AgNO_(3) solution which is soluble in aqueous ammonia. The given compound contains a metal which resembles Li and an integral part of Grignard reagent. Identify the compound withh the equation of its oxide formation.

A compound in the hydrated state gives an ionic oxide when heated stro

1.	A compound in the hydrated state gives an ionic oxide when heated strongly. Its aqueous solution does not give any precipitate with H_(2)S, however, it does give white ppt. with AgNO_(3) solution which is soluble in aqueous ammonia. The given compound contains a metal which resembles Li and an integral part of Grignard reagent. Identify the compound withh the equation of its oxide formation.
Answer» Solution :The metal which is diagonally RELATED to LI and forms an integral PART of Grignard reagent is Mg. Besides Mg, the hydrated salt ALSO contain `Cl^(-)` as it gives white ppt. of AgCl with `AgNO_(3)`. AgCl is soluble in `NH_(4)OH`. Thus, the given salt is MgO as FOLLOWS: `MgCl_(2).6H_(2)O overset("heat")to MgO + 2HCl + 5H_(2)O` `MgCl_(2) + 2AgNO_(3) to 2AgC l + Mg(NO_(3))_(2)` `AgCl + 2NH_(4)OH to [Ag(NH_(3))_(2)Cl^(-) + 2H_(2)O]` `Mg + RX overset("ether") to underset("Gingard reagent")(RMgX)` Ans: The compound is `MgCl_(2).6H_(2)O`