MEDIUM
12th Rajasthan Board
IMPORTANT
Earn 100

Identify the ores mentioned below which can be concentrated by magnetic separation method?

Fe2O3, FeCO3, ZnS, ZnO, CuFeS2

Important Questions on General Principles and Processes of Isolation of Elements

MEDIUM
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 15
Describe the magnetic separation process.
EASY
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 16
How does Gibbs energy explain the spontaneity of a chemical reaction at higher temperature?
HARD
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 17
What are the limitations of Ellingham Diagram?
HARD
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 18
Between C and CO, which is a better reducing agent for ZnO?
EASY
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 19
What type of metals are extracted electrolytically?
EASY
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 20
Explain the role of SiO2 in the metallurgy of Cu containing Fe as impurity.
HARD
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 21

Name the chief form of occurrence of the Zinc in the earth’s crust.

MEDIUM
12th Rajasthan Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 6 - General Principles and Processes of Isolation of Elements>Exercise>Q 22

How does mineral different from ore?