1.

Match the Column-I with Column-II: {:("Column-I","Column-II"),((A)"van arkel method",(p)"purification of copper"),((B)"Poling",(q)"Refining of silver"),((C )"Cupeilation",(r )"Manufacture of"Na_(2)CO_(3)),((D)"Solvay process",(s)"Purification of titanium"):}

Answer»

P-4,Q-1,R-3,S-2
P-3,Q-1,R-4,S-2
P-3,Q-4,R-2,S-1
P-4,Q-1,R-2,S-3

Answer :A


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