Class 9 chemistry Practice Tests
Class 9 Chemistry Online Tests
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MCQ 1: On an industrial scale, sodium metal is prepared by electrolysis of fused
MCQ 2: The electrolyte used for tin plating is
MCQ 3: Conditions for good electroplating are
MCQ 4: The process used to deposit one metal over another metal is called
MCQ 5: When zinc is plated on steel, the anode is made up of
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