A metal chloride original solution (i.e,...

A metal chloride original solution (i.e, O.S) on mixing with `K_(2)CrO_(4)` solution gives a yellow precipitate soluble in aqueous sodium hydroxide. The metal may be:

mercury

iron

silver

lead

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Give examples and explain with equations: (a)Two colourless solution give a black precipitate on mixing. (b)Two colourless solutions give a red precipitate on mixing, soluble in excess of one of them. ( c)Two colourless solutions give a white precipitate on mixing, soluble in ammonium hydroxide. (d)Two colourless solutions give a yellow precipitate on mixing.

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The metallic salt (XY) is soluble in water. (a) When the aqueous soluble of (XY) is treated with NaOH solution, a white precipitate (A) is formed. In excess of NaOH solution, a white precipitate (A) is formed. In excess of NaOH solution, white precipitate (A) dissolves to form a compound (B) . When this solution is boiled with soild NH_(4) Cl , a precipitate of compound (C) is formed. (b) An aqueous solution on treatment with BaCl_(2) solution gives a white precipitate (D) white is insoluble in conc HCl . ( c) The metallic salt (XY) forms a double salt (E) with potassium sulphate. Identify (XY),(A),(B),(C),(D) and (E) .

GRB PUBLICATION-SALT ANALYSIS-H: IInd Group Cations

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