Q.
Which of the following is used in Down’s process of extracting sodium metal?
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a
NaCl+KCl+KF
b
NaCl
c
NaCl + KCl + KF
d
NaCl + NaOH
answer is B.
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Detailed Solution
Sodium chloride is heated to liquid state which is electrolyzed to form sodium metal and chlorine gas 2Cl−→Cl2+2e−2Na++2e−→2Na2NaCl→2Na+Cl2↑
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