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General Principles and processes of Isolation of Elements
easy
Poling process is used :-
A
for the removal of $Cu_2O$ from $Cu$
B
for the removal of $Al_2O_3$ from $Al$
C
for the removal of $Fe_2O_3$ from $Fe$
D
in all the above
Solution
Poling is a method employed in the purification of copper which contains cuprous oxide as an impurity.
Standard 12
Chemistry
Similar Questions
Match list $I$ with list $II$ and select the correct answer using the codes given below the lists
| List $I$ | List $II$ | ||
| $I.$ | Cyanide process | $A.$ | Ultrapure $Ge$ |
| $II.$ | Floatation process | $B.$ | Pine oil |
| $III.$ | Electrolytic reduction | $C.$ | Extraction of $Al$ |
| $IV.$ | Zone refining | $D.$ | Extraction of $Au$ |
