JEE Main 202125 FebruaryEvening Shift
- Exam
- JEE Main
- Year
- 2021
- Date
- 25 February
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- General Principles and Processes of Isolation of Metals
JEE Main 2021 · 25 February · Evening Shift · Chemistry · General Principles and Processes of Isolation of Metals
The method used for the purification of Indium is:
The method used for the purification of Indium is:
Options
- Avapour phase refining
- Bliquation
- Czone refining
- Dvan Arkel method
Correct answer
C. zone refining
Step-by-step solution
Zone refining is used for the purification of indium.
Zone refining is based on the principle that the impurities are more soluble in the melt than in the solid state of the metal.
This method is very useful for producing semiconductor and other metals of very high purity, e.g., germanium, silicon, boron, gallium.