Choose correct option:
The calcium is not deposited during Down's process of extracting sodium because:
(a) Calcium chloride is not ionized
(b) Calcium is less reactive
(c) Calcium chloride is a flux
(d) Calcium requires higher potential than sodium
Answers
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Answer:
d) calcium requires higher potential than sodium
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(d) Calcium requires higher potential than sodium
Explanation:
The calcium does not enter into the reaction because its reduction potential of -2.87 volts is lower than that of magnesium, which is -2.38 volts. Hence the magnesium ions are reduced to metallic form in preference to those of calcium.
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