MEDIUM
JEE Main
IMPORTANT
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"In electrolysis, Mn+aq, the metal ions are discharged at the negative electrode (cathode) and deposited there."

The above method of extraction is not possible for:

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Important Questions on General Principles and Processes of Isolation of Elements

EASY
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 19
Which of the following statements is correct about the role of substances added in the froth floatation process?
MEDIUM
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 20
In the froth flotation process, zinc sulphide and lead sulphide can be separated by which of the following?
MEDIUM
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 21
Which of the following reactions occur during calcination?
MEDIUM
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 1
Wrought iron is the purest form of iron. Write a reaction used for the preparation of wrought iron from cast iron. How can the impurities of sulphur, silicon and phosphorus be removed from cast iron?
EASY
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 2
Why is sulfide ore of copper heated in a furnace after mixing with silica?
MEDIUM
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 3
Write the chemical reactions involved in the extraction of gold by cyanide process. Also, give the role of zinc in the extraction.
HARD
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 4
The extraction of Au by leaching with NaCN involves both oxidation and reduction. Justify this by giving equations.
MEDIUM
JEE Main
IMPORTANT
Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 2 JEE Main & Advanced>Chapter 1 - General Principles and Processes of Isolation of Elements>DPP>Q 5
Select the correct matching.