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← Bihar Board Class 12 PYQ
Surface Chemistry
Bihar Board Class 12 · Chemistry · 30 past questions
Topic
Classification of colloids
3
Catalysis
2
Adsorption
1
Emulsions and soaps
1
Adsorption isotherms
0
Properties of colloids
0
Purification and preparation of colloids
0
Level
Easy
2
Moderate
0
Year
2026
2
2025
1
2024
1
2023
1
2022
0
2021
0
2018
0
2017
0
2016
0
2 of 30 ·
show all
Q7
2026 Set A
Which of the following is a biological catalyst ?
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Q8
2026 Set A
Which of the following is a shape selective catalyst ?
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