☰
Menu
← Back to shiwamsclass.com
← Website
Home
Free quizzes
Free mock tests
All mock tests
CBSE Class 10
CBSE Class 12
Bihar Board 12
JEE Main
JEE Advanced
Chapter-wise PYQ
CBSE Class 10 PYQ
CBSE Class 12 PYQ
Bihar Board 12 PYQ
JEE Main PYQ
JEE Advanced PYQ
Sign in
← shiwamsclass.com
← Bihar Board Class 12 PYQ
General Principles and Processes of Isolation of Elements
Bihar Board Class 12 · Chemistry · 35 past questions
Topic
Occurrence and ores of metals
2
Concentration of ores
0
Electrolytic and cyanide extraction
0
Refining of metals
0
Roasting, calcination and smelting
0
Level
Easy
2
Moderate
0
Year
2026
1
2025
0
2024
3
2023
2
2022
1
2021
4
2019
1
2017
1
2016
2
2015
4
2 of 35 ·
show all
Q29
2016
Cinnabar is
Try it →
Q30
2016
Element found from sea water is
Try it →