AP EAMCET Medical 2017 Shift 1 Paper

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Question : 145 of 160

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The method of zone refining of metals is based on the principle of

Greater mobility of the pure metal than that of impurity
Greater solubility of the impurity in the molten state than in the solid of metal
Higher melting point of the impurity than that of the pure metal
The low melting point metal is purified by this method

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