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(a) Name the reducing agent used in the ...

(a) Name the reducing agent used in the extraction of zinc oxide. Give the equation.
(b) What is the principle involved in zone refining of metals?

Text Solution

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(a) Coke (carbon)
`ZnO+CrarrZn+CO`
(b) The impurities are more soluble in the melt than in the solid state of the metal.
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