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Which of the following statement are correct?(i)The liquation process is used for the purifiction of so (ii)`Ca and Mg` are extracted by electroloytie reduction(iii)The amalganation method is used in the parification of `Ag`(iv)The electrometallagical process (electrolysis of fased salts) is employed in extract sodiumA. (i)(ii),(iii),(iv)B. (ii),(iii),(iv)C. (i),(iii)D. (iii),(ii),(iv) |
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Answer» Correct Answer - a Amalgemation process an old method of extraction of Ag is still in use in some countries .The salphide ore of Ag is creeshed and converted into a slime with a silation of capric cloride `Ag_(2)S + CaCI rarr 2AgCI + CuS` Some reacury libercating silver `AgCI + 2Hg rarr 2Ag + Hg CI_(2)` The metal silver which is washed and the dissible Ag left betind in the retorts |
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