An aqueous solution of and chromium alum is heated with excess of and filtered
CHEMISTRY · Single correct · CBSE · Chemistry · d- and f-Block Elements · d- and f-Block Elements
Problem
An aqueous solution of FeSO4⋅Al2(SO4)3 and chromium alum is heated with excess of Na2O2 and filtered. The material obtained are:
(1) a colourless filtrate and green residue
(2) a yellow filtrate and brown residue
(3) a yellow filtrate and a green residue
(4) a green filtrate and a brown residue