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

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 22

How does mineral different from ore?

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 23

What is meant by the term native state?

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 24

In the metallurgy of aluminium, write the uses of graphite rods.

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 25

Which method is used for refining low volatile boiling metals ?

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 26

Describe a method for the refining of nickel.

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 27

Explain zone refining.

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 28

What happens to the ore during roasting?

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 29

State the principles which serve as basis for the Magnetic separation in metallurgy.