MEDIUM
12th Odisha Board
IMPORTANT
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Which ore is suitable for carbon reduction? Explain with one example.

Important Questions on General Principles and Processes of Isolation of Elements

MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 14
What do you understand by carbon reduction in metallurgy? Give an example.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 15
What happens to the ore during roasting?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 16
What is flux? Give an example.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 17
What is the function of limestone in the extraction of iron? Give equation to explain this action.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 1
What is the significance of leaching in the extraction of aluminium?
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 2
When a metal is formed in the liquid state, then the process of reduction is easier. Comment on the statement.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 3
Which one out of Zn and Cu, can be extracted by hydrometallurgy? Explain.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-2>Chapter 6 - General Principles and Processes of Isolation of Elements>QUESTIONS>Q 4
What is the role of (a) depressant and (b) froth stabilisers in 'froth floatation' process?