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(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.
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( I ) X will be absorbed more strongly than Y .
( II ) Cu matte has minute amount of iron oxide as its impurity and it can be removed as slag when reacted with silicon dioxide .
FeO + SiO2 - - - - - - - - - > FeSiO3 ( slag )
( III ) For refining of Zr , Van Arkel method will be used .
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