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← Bihar Board Class 12 PYQ
General Principles and Processes of Isolation of Elements
Bihar Board Class 12 · Chemistry · 35 past questions
Topic
Concentration of ores
1
Electrolytic and cyanide extraction
1
Refining of metals
1
Occurrence and ores of metals
0
Roasting, calcination and smelting
0
Level
Easy
1
Moderate
0
Year
2026
0
2025
1
2024
0
2023
0
2022
1
2021
0
2019
1
2017
0
2016
0
2015
0
1 of 35 ·
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Q5
2025 Set D
The process of purification of metal represented by the following equation is called…
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