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General Principles and processes of Isolation of Elements
easy
If the impurity in a metal has a greater affinity for oxygen and is more easily oxidised than the metal, then the purification of metal may be carried out by
A
Cupellation
B
Electrorefining
C
Zone refining
D
Poling
Solution
If the impurity in a metal has a greater affinity for oxygen and is more easily oxidized than the metal, then the purification of metal may be carried out by Cupellation.
Standard 12
Chemistry
Similar Questions
Match the list
| $I$ | $II$ | ||
| $(A)$ | Van arkel method | $(P)$ | Purification of titanium |
| $(B)$ | Solvay process | $(Q)$ | Manufacture of $Na_2CO_3$ |
| $(C)$ | Bassemerisation | $(R)$ | Reduction of aluminium |
| $(D)$ | Holl Herault's process | $(S)$ | Reduction of cupper |
medium
Match List $I$ and $II$ and select the correct answer using the codes given below the lists :
| List $I$ | List $II$ |
| $I.$ Cyanide process | $(1)$ Ultrapure $Ge$ |
| $II.$ Floatation process | $(2)$ Dressing of $HgS$ |
| $III.$ Electrolytic reduction | $(3)$ Extraction of $Al$ |
| $IV.$ Zone refining | $(4)$ Extraction of $Au$ |
normal
