Which of the following statements is false ?A. During roasting, moisture is removed from the oreB. The ore is freed from all non metallic impuritiesC. Calcination of ore is carried out in the absence of any blast of airD. The concentrated zinc blende is subjected to calcination during the extraction by pyrometallurgy.

Which of the following statements is false ?A. During roasting, moistu

1.	Which of the following statements is false ?A. During roasting, moisture is removed from the oreB. The ore is freed from all non metallic impuritiesC. Calcination of ore is carried out in the absence of any blast of airD. The concentrated zinc blende is subjected to calcination during the extraction by pyrometallurgy.
Answer» Correct Answer - D

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