Revision - Surface Chemistry & Metallurgy
Chemistry ยท Grade 12 ยท Week 43 ยท 25 questions
In Grade 12 chemistry, Revision is an NCERT-heavy chapter focusing on Surface Chemistry & Metallurgy. Expect direct NCERT intext and exercise questions to reappear on the board paper almost verbatim.
What you'll practise
- Identify Surface Chemistry & Metallurgy
- Master the key derivations and worked examples from NCERT for revision
- Solve CBSE board-pattern problems from revision including NCERT exemplar-level questions
All 25 questions in this Revision - Surface Chemistry & Metallurgy quiz
Grade 12 Chemistry โ Revision - Surface Chemistry & Metallurgy: 25 practice questions with instant scoring and explanations.
- Which of the following best describes what adsorption is?
- Physical adsorption heat is:
- Freundlich equation x/m = kP^(1/n) is valid at:
- Langmuir equation ฮธ = kP/(1+kP) gives ___ layer:
- BET isotherm shows:
- Catalyst increases rate by:
- Tyndall effect is due to:
- Brownian motion is due to:
- Electrophoresis separates based on:
- Lyophilic colloids are:
- Coagulation uses:
- Oil-in-water emulsion has oil as:
- Emulsifying agents are:
- Micelle formation occurs when concentration exceeds:
- Hardy-Schulze rule: coagulation depends on:
- Ore concentration removes:
- Gravity separation works when:
- Froth flotation is used for:
- Roasting is heating ore in:
- Thermite reaction Al + FeโOโ is:
- Reduction of iron oxide uses:
- Electrolytic refining purifies metals by:
- Blast furnace produces:
- Steel is made from pig iron by:
- Corrosion of iron is reduced by:
Question 1 of 250 correct so far