Monday, December 17, 2007

Past JEE Questions Ch.17 Ores/Minerals and Extractive Metallury

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JEE Question 2007 Paper I

Extraction of zinc from zinc blende is achieved by
(A) electrolytic reduction
(B) roasting followed by reduction with carbon
(C) roasting followed by reduction with another metal
(D) roasting followed by self-reduction

Answer: B
Roasting followed by reduction with carbon.
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