Read CBSE Class 12 Chemistry HOTs Isolation of Elements below. Access comprehensive High Order Thinking Skills (HOTS) questions with answers for Class 12 Chemistry Unit 6 General Principles and Processes of Isolation of Elements. Tailored for the 2026-27 exam session, these analytical problems help Class 12 students understand deep concepts based on the latest CBSE, NCERT, and KVS syllabus.
Unit 6 General Principles and Processes of Isolation of Elements Class 12 Chemistry HOTS with Solutions
Practicing Class 12 Chemistry HOTS Questions is important for scoring high in Chemistry. Use the detailed answers provided below to improve your problem-solving speed and Class 12 exam readiness.
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UNIT - 6
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
1 Mark questions
1. During metallurgical process, in the extraction of metal, flux is added. Why?
2. ‘Reduction of a metal oxide is easier if the metal formed is in liquid state at the temperature of reduction. Why?
3. Although thermodynamically feasible, in practice, magnesium metal is not used for the reduction of alumina in the metallurgy of aluminium. Why?
4. Can Mg reduce Al2O3 and Al reduces MgO? State the conditions required for this reduction process.
2 / 3 Marks Questions
5. At a site, low grade copper ores are available and zinc and iron scraps are also available. Which of the two scraps would be more suitable for reducing the leached copper ore and why?
6. The value of DfGo for formation of Cr2O3 is – 540 kJ mol-1 and that of Al2O3 is – 827 kJ mol-1. Is the reduction of Cr2O3 possible with Al?
7. Why is zinc not extracted from zinc oxide through reduction using CO?
8. Cinnabar (HgS) abd Galena (PbS) on roasting often give their respective metals but Zinc blende (ZnS) does not. Why?
9. The choice of a reducing agent in a particular case depends upon thermodynamic factor. How far do you agree with this statement? Explain?
10.“The extraction of Ag by leaching with NaCN involves both oxidation and reduction”. Explain?
11.Out of C and CO which is a better reducing agent at 673 K?
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Class 12 Chemistry Chapter Unit 6 General Principles and Processes of Isolation of Elements Advanced Problem Sets
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FAQs
You can download the teacher-verified PDF for CBSE Class 12 Chemistry HOTs Isolation of Elements from StudiesToday.com. These questions have been prepared for Class 12 Chemistry to help students learn high-level application and analytical skills required for the 2026-27 exams.
In the 2026 pattern, 50% of the marks are for competency-based questions. Our CBSE Class 12 Chemistry HOTs Isolation of Elements are to apply basic theory to real-world to help Class 12 students to solve case studies and assertion-reasoning questions in Chemistry.
Unlike direct questions that test memory, CBSE Class 12 Chemistry HOTs Isolation of Elements require out-of-the-box thinking as Class 12 Chemistry HOTS questions focus on understanding data and identifying logical errors.
After reading all conceots in Chemistry, practice CBSE Class 12 Chemistry HOTs Isolation of Elements by breaking down the problem into smaller logical steps.
Yes, we provide detailed, step-by-step solutions for CBSE Class 12 Chemistry HOTs Isolation of Elements. These solutions highlight the analytical reasoning and logical steps to help students prepare as per CBSE marking scheme.