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← Bihar Board Class 12 PYQ
The d- and f-Block Elements
Bihar Board Class 12 · Chemistry · 31 past questions
Topic
Electronic configuration
5
Introduction and general characteristics of transition elements
5
Lanthanoids and actinoids
5
Important compounds and biological roles
3
Oxidation states
2
Colour and complex formation
1
Magnetic properties
1
Level
Easy
3
Moderate
0
Year
2026
0
2025
0
2024
0
2023
0
2022
1
2021
0
2019
0
2018
1
2017
0
2016
0
2015
1
3 of 31 ·
show all
Q16
2022 Set E
Magnesium is an important component of which biomolecule ?
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Q25
2018
Copper sulphate solution on treatment with excess of KI gives whitish precipitate. The precipitate is-
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Q30
2015
Which one of the following is called green vitriol?
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