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for extraction of highly reactive metal compounds
Question:
For extraction of highly reactive metal compounds from their ores, some impurities are added during the electrolysis process. The role of impurity is
AP POLYCET - 2019
AP POLYCET
Updated On:
May 17, 2024
to give color to the ore
to increase the melting point of ore
to increase weight of ore
to decrease the melting point of ore
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The Correct Option is
D
Solution and Explanation
The correct option is (D):to decrease the melting point of ore
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Top Questions on Electrolytic Cells and Electrolysis
The reactions taking place during electrolysis of aqueous solution of CuCl
2
with platinum electrodes are :
A. Cu
2+
(aq) + 2e
-
→ Cu(s)
B. H
+
(aq) + e
-
→
\(\frac{1}{2}H_2(g)\)
C. H
2
O(l) + e
-
→
\(\frac{1}{2}H_2(g)+^-OH(aq)\)
D. Cl
-
(aq) →
\(\frac{1}{2}Cl_2(g)+e^-\)
E. 2
-
OH(aq) → H
2
O(l) +
\(\frac{1}{2}O_2(g)+2e^-\)
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