1.

A mixture of ferrie alum, chrome alum and potash alum is dissolved in water and treated with an excess of an NH_(3) solution. The precipitate is filtered and the residue is warmed with a mixture of NaOH and H202 and filtered. We will get

Answer»

a green residue and a YELLOW filtrate
a BROWN residue and a yellow filtrate
a brown residue and a green filtrate
a BLUE residue and a green filtrate

Solution :Brown PRECIPITATE and yellow filtrate


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