Matter's Purity MCQ Quiz – Part 1
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This Matter’s Purity MCQ Quiz helps aspirants revise important concepts related to pure substances, mixtures, and methods of separation, which are frequently asked in competitive exams. Regular practice of matter’s purity MCQs improves conceptual understanding and helps candidates answer chemistry questions quickly and accurately.
GK Series – Chemistry – Matter’s Purity MCQ Quiz |
|
| Subject | Chemistry |
| Chapter | Matter’s Purity |
| Part | 1 |
| Questions | 25 |
Who Should Attempt This Matter’s Purity MCQ Quiz?
This Matter’s Purity MCQ Quiz is useful for aspirants preparing for SSC, Railways, Defence, and other government job exams, where basic chemistry questions are commonly asked in the General Knowledge section.
Topics Covered in This Matter’s Purity MCQ Quiz
This quiz includes MCQs based on important topics such as elements, compounds, mixtures, homogeneous and heterogeneous mixtures, solutions, suspensions, colloids, and methods of separation like filtration, distillation, and evaporation, along with other fundamental concepts related to purity of matter.
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Question 1 of 25
1. Question
A substance that contains only one type of particles and has fixed composition is called
Correct
➤ Pure substance has fixed composition and uniform properties.
➤ Example: elements and compounds.Incorrect
➤ Pure substance has fixed composition and uniform properties.
➤ Example: elements and compounds. -
Question 2 of 25
2. Question
Which of the following is a pure substance?
Correct
➤ Copper is an element → pure substance.
➤ Others are mixtures.Incorrect
➤ Copper is an element → pure substance.
➤ Others are mixtures. -
Question 3 of 25
3. Question
A mixture differs from a compound because
Correct
➤ In mixtures, components retain their properties.
➤ No chemical bonding.Incorrect
➤ In mixtures, components retain their properties.
➤ No chemical bonding. -
Question 4 of 25
4. Question
Which of the following is a compound?
Correct
➤ NaCl is a compound.
➤ Elements combine chemically in fixed ratio.Incorrect
➤ NaCl is a compound.
➤ Elements combine chemically in fixed ratio. -
Question 5 of 25
5. Question
Which of the following is a homogeneous mixture?
Correct
➤ Salt solution is uniform throughout.
➤ Single phase mixture.Incorrect
➤ Salt solution is uniform throughout.
➤ Single phase mixture. -
Question 6 of 25
6. Question
Which of the following is a heterogeneous mixture?
Correct
➤ Oil and water form separate layers.
➤ Non-uniform mixture.Incorrect
➤ Oil and water form separate layers.
➤ Non-uniform mixture. -
Question 7 of 25
7. Question
A solution is defined as
Correct
➤ Solution is a homogeneous mixture.
➤ Uniform composition.Incorrect
➤ Solution is a homogeneous mixture.
➤ Uniform composition. -
Question 8 of 25
8. Question
In a solution, the component present in larger amount is called
Correct
➤ Solvent is present in larger quantity.
➤ It dissolves solute.Incorrect
➤ Solvent is present in larger quantity.
➤ It dissolves solute. -
Question 9 of 25
9. Question
In soda water, carbon dioxide is
Correct
➤ CO₂ is dissolved gas → solute.
➤ Water is solvent.Incorrect
➤ CO₂ is dissolved gas → solute.
➤ Water is solvent. -
Question 10 of 25
10. Question
Which of the following represents a gas in liquid solution?
Correct
➤ Soda water = gas (CO₂) in liquid (water).
Incorrect
➤ Soda water = gas (CO₂) in liquid (water).
-
Question 11 of 25
11. Question
Which of the following is an example of solid in liquid solution?
Correct
➤ Sugar dissolves in water → solid in liquid solution.
➤ Very common example.Incorrect
➤ Sugar dissolves in water → solid in liquid solution.
➤ Very common example. -
Question 12 of 25
12. Question
Which of the following is an example of liquid in liquid solution?
Correct
➤ Ink mixes uniformly in water.
➤ Liquid in liquid solution.Incorrect
➤ Ink mixes uniformly in water.
➤ Liquid in liquid solution. -
Question 13 of 25
13. Question
Which of the following is an example of gas in solid solution?
Correct
➤ Hydrogen dissolved in palladium.
➤ Gas in solid solution.Incorrect
➤ Hydrogen dissolved in palladium.
➤ Gas in solid solution. -
Question 14 of 25
14. Question
Which of the following is an example of solid in solid solution?
Correct
➤ Brass = Cu + Zn (solid in solid).
➤ Alloy type solution.Incorrect
➤ Brass = Cu + Zn (solid in solid).
➤ Alloy type solution. -
Question 15 of 25
15. Question
Which of the following is true for a solution?
Correct
➤ Solution particles are < 1 nm.
➤ Cannot be seen.Incorrect
➤ Solution particles are < 1 nm.
➤ Cannot be seen. -
Question 16 of 25
16. Question
Which property is NOT shown by a true solution?
Correct
➤ True solutions do NOT show Tyndall effect.
➤ No light scattering.Incorrect
➤ True solutions do NOT show Tyndall effect.
➤ No light scattering. -
Question 17 of 25
17. Question
Why can’t particles of a solution be seen?
Correct
➤ Particles are < 1 nm.
➤ Invisible to naked eye.Incorrect
➤ Particles are < 1 nm.
➤ Invisible to naked eye. -
Question 18 of 25
18. Question
Which of the following is true about solutions?
Correct
➤ Solution particles pass through filter.
➤ Cannot be separated by filtration.Incorrect
➤ Solution particles pass through filter.
➤ Cannot be separated by filtration. -
Question 19 of 25
19. Question
Which of the following is a stable mixture?
Correct
➤ Solutions are stable.
➤ Particles do not settle.Incorrect
➤ Solutions are stable.
➤ Particles do not settle. -
Question 20 of 25
20. Question
Which of the following best describes air?
Correct
➤ Air is uniform mixture of gases.
➤ Homogeneous mixture.Incorrect
➤ Air is uniform mixture of gases.
➤ Homogeneous mixture. -
Question 21 of 25
21. Question
A solution that can dissolve more solute at a given temperature is called
Correct
➤ Unsaturated solution can dissolve more solute.
➤ Has capacity to dissolve further.Incorrect
➤ Unsaturated solution can dissolve more solute.
➤ Has capacity to dissolve further. -
Question 22 of 25
22. Question
A solution that cannot dissolve more solute at a given temperature is called
Correct
➤ Saturated solution contains maximum solute.
➤ No more dissolves.Incorrect
➤ Saturated solution contains maximum solute.
➤ No more dissolves. -
Question 23 of 25
23. Question
A solution containing large amount of solute is called
Correct
➤ Concentrated solution has more solute.
➤ Compared to solvent.Incorrect
➤ Concentrated solution has more solute.
➤ Compared to solvent. -
Question 24 of 25
24. Question
Which of the following is true for a saturated solution?
Correct
➤ Saturated solution cannot dissolve more solute.
➤ At given temperature.Incorrect
➤ Saturated solution cannot dissolve more solute.
➤ At given temperature. -
Question 25 of 25
25. Question
What happens when more solute is added to a saturated solution?
Correct
➤ Extra solute remains undissolved.
➤ Settles at bottom.Incorrect
➤ Extra solute remains undissolved.
➤ Settles at bottom.