General Principles of Isolation of Elements (Class 12)
Concentration of ores, reduction methods, refining, thermodynamic principles.
Test yourself on General Principles of Isolation of Elements (Class 12)
5 real MHT-CET questions with instant answers — no signup, ~3 minutes.
Study notes are still being prepared.
Don't wait — Shishya can teach you this topic right now, on demand.
Ask Shishya to teach this →Need more? Ask Shishya
Shishya is your personal tutor for this topic. Pick a starter or open a free chat.
- Go deeper on this topicGo deeper on General Principles of Isolation of Elements (Class 12) for MHT-CET — examples and edge cases I should know.
- Show me exam shortcutsGive me 3 fastest shortcuts to solve General Principles of Isolation of Elements (Class 12) questions in the exam.
- What mistakes should I avoid?What are the most common mistakes students make on General Principles of Isolation of Elements (Class 12)? How do I avoid them?
- Quiz me adaptivelyQuiz me on General Principles of Isolation of Elements (Class 12) — start with one easy question, then go harder based on how I answer.
Practice this topic
Take a full mock →Q1 · General Principles of Isolation of Elements (Class 12) · EASY
In the extraction of aluminium by electrolysis of molten alumina, cryolite (Na3AlF6) is added to the electrolyte. What is the main purpose of adding cryolite?
Q2 · General Principles of Isolation of Elements (Class 12) · MEDIUM
For the reduction of a metal oxide (MO) using carbon as a reducing agent, the following reaction occurs: MO + C → M + CO. At a certain temperature, the Gibbs free energy change for the reaction 2C + O2 → 2CO is more negative than that for the reaction 2MO → 2M + O2. What can be concluded about the reduction of MO by carbon at this temperature?
Q3 · General Principles of Isolation of Elements (Class 12) · HARD
In the froth flotation process for concentration of sulphide ores, pine oil acts as a froth stabilizer and sodium ethyl xanthate acts as a collector. In the concentration of ZnS ore containing PbS as an impurity, which reagent should be added to selectively prevent PbS from coming into the froth while allowing ZnS to float?
Q4 · General Principles of Isolation of Elements (Class 12) · MEDIUM
Identify the catalyst used in the conversion of haematite ore to pig iron in a blast furnace.