A mixture of X and Y was loaded in the column of silica. It was eluted by alcohol water mixture. Compound Y eluted in preference to compound X.

Question

(i) A mixture of X and Y was loaded in the column of silica. It was eluted by alcohol water mixture. Compound Y eluted in preference to compound X. Compare the extent of adsorption of X and Y on column.

(ii) Why copper matte is put in silica lined converter? Write reactions involved

(iii) Name the method used for the refining of Zr.

Answer 1

(i) X is more strongly adsorbed than Y.

(ii) Copper matte contains small amount of FeO as impurity which is removed as FeSiO3 slag when reacts with silica. FeO + SiO2 → FeSiO3 (slag)

(iii) Van Arkel Method