Class 12th Chemistry Chapter General Principles and Processes of Isolation of Elements Free MCQ Test Quiz

Prepare for Class 12 Chemistry exams with our free test quiz on Isolation of Elements! Learn about extraction principles, concentration, oxidation, reduction, electrolytic methods, and refining. Explore the extraction of aluminium, copper, zinc, and iron. Test your knowledge now!

Check Class 12th Chemistry General Principles and Processes of Isolation of Elements

12th Chemistry: General Principles and Processes of Isolation of Elements

1 / 10

1. During the formation of metal oxides from metal and oxygen, what happens to the change in Gibbs free energy with the little increase of temperature?

(a)Increases

(b)Decreases

(d)Insufficient data

(c)Remains same

2 / 10

2. Which of the following is not used as a collector?

Cresols

Fatty acids

Pine oil

Xanthates

3 / 10

3. All ores are minerals, while all minerals are not ores because

the minerals are obtained from mines

the metal can’t be extracted economically from all the minerals

all of these are correct

minerals are complex compounds

4 / 10

4. While extracting an element from its ore, the ore is grounded and leached with dil. potassium cyanide solution to form the soluble product potassium argento cyanide. The element is

Lead

Manganese

Chromium

Silver

5 / 10

5. Flux is used to remove :

basic impurities

all types of impurities

acidic impurities

acidic and basic both impurities

6 / 10

6. Froth flotation process is based on

magnetic properties of ore particles

specific gravity of ore particles

electrical properties of ore particles

wetting properties of ore particle

7 / 10

7. Ellingham diagrams are plots drawn between ____ and ____ for formation of oxides.

(a)Temperature and change in enthalpy

(b)Change in Gibbs free energy and Pressure

(c)Change in Gibbs free energy and temperature

(d)Change in enthalpy and pressure

8 / 10

8. Chief ore of Al is :

bauxite

feldspar

kaolin

cryolite

9 / 10

9. Which of the following fluxes is used to remove acidic impurities in metallurgical process?

Lime stone

Sodium chloride

Sodium carbonate

Silica

10 / 10

10. Malachite is an ore of

iron

copper

zinc

mercury

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Chapter-Wise Chemistry Mock Test Quiz: General Principles and Processes of Isolation of Elements (Class 12)

⚙️ Class 12 Chemistry Chapter 6 Free Test Quiz: Master the Extraction of Elements!

Are you preparing for your Class 12 Chemistry exams? Test your knowledge with our free online quiz on Chapter 6 – General Principles and Processes of Isolation of Elements! This chapter covers vital concepts like concentration, oxidation, reduction, electrolytic methods, and refining.

🔍 Key Concepts Covered:

Concentration of ores: Techniques to separate valuable minerals from gangue
Oxidation and reduction: Understanding their role in metal extraction
Electrolytic methods: Using electricity to isolate elements
Refining: Processes that increase metal purity for industrial use

⚙️ Metals Explored:

Aluminium
Copper
Zinc
Iron

Discover their natural occurrence, extraction methods, and importance in various industries.

🎯 Why Take This Quiz?
Whether your goal is to score high or deepen your grasp of chemistry, this free Class 12 Chemistry Chapter 6 quiz is an ideal way to reinforce key concepts. Take the quiz now and strengthen your understanding of element isolation!

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