CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set 05

Practice Worksheets for Class 12 Chemistry: Unit 6 General Principles and Processes of Isolation of Elements

Explore reliable practice materials for Unit 6 General Principles and Processes of Isolation of Elements tailored for Class 12 learners. Utilizing these Chemistry worksheets ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.

Practice Unit 6 General Principles and Processes of Isolation of Elements Worksheets for Class 12 Chemistry

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General Principles and Processes of Isolation of Elements
 
1. Out of C and CO, which is a better reducing agent at 673 K? (2013)
 
2. Describe the role of
a) Iodine in the refining of titanium. (2010)
b) Collector in the froth floatation process. (2012)
 
3. Describe how the following changes are brought out:
a) Pig iron into steel
b) Zinc oxide into zinc metal. (2010)
 
4. Differentiate between
a) Calcination and roasting
b) Electrolytic reduction and electrolytic refining
c) Flux and slag
 
5. Write the chemical reactions which take place in the following operations:
a) Electrolytic reduction of Al2O3.
b) Isolation of Zn from zinc blende.
c) Mond’s process for refining of Ni.
 
6. Give reasons:
a) Copper matte is put in silica lined convertor.
b) Cryolite is added to alumina during electrolytic reduction.
c) Pine oil is used in the froth floatation process
 
7. a) Name the method used for the refining of titanium.
b) What is the role of Zn in the extraction of silver?
c) Reduction of metal oxide to metal becomes easier if the metal obtained is in liquid state. Why? (2015)

 

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Exam Preparation Worksheet for Class 12 Chemistry Unit 6 General Principles and Processes of Isolation of Elements

Download Practice Sheet: Unit 6 General Principles and Processes of Isolation of Elements (Class 12 Chemistry)

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Concept Clarification for Unit 6 General Principles and Processes of Isolation of Elements

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Are these Chemistry Class 12 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set 05 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 12.

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