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Chapter 1: Matter in Our Surroundings
9 questions
2
Chapter 2: Is Matter Around Us Pure?
13 questions
Q1
Pragya tested the solubility of three different substances at different temperatures and collected the data as given below(results are given in the following table, as grams of substance dissolved in grams of water to form a saturated solution).
What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate in grams of water at K?
Pragya makes a saturated solution of potassium chloride in water at and leaves the solution to cool at room temperature. What would she observe as the solution cools? Explain.
Find the solubility of each salt at . Which salt has the highest solubility at this temperature?
What is the effect of change of temperature on the solubility of a salt?
Q2
Explain the following giving examples.
Saturated solution
Pure substance
Colloid
Suspension
Saturated solution
Pure substance
Colloid
Suspension
Q3
Classify each of the following as a homogeneous or heterogeneous mixture:
Soda water, wood, air, soil, vinegar, filtered tea.
View all questionSoda water, wood, air, soil, vinegar, filtered tea.
3
Chapter 3: Atoms and Molecules
16 questions
4
Chapter 4: Structure of the Atom
19 questions
5
Chapter 5: The Fundamental Unit of Life
10 questions
6
Chapter 6: Tissues
15 questions
7
Chapter 7: Diversity in Living Organisms
6 questions
8
Chapter 8: Motion
18 questions
9
Chapter 9: Force and Laws of Motion
29 questions
10
Chapter 10: Work and Energy
23 questions
11
Chapter 11: Sound
25 questions
12
Chapter 12: Why do We Fall Ill?
6 questions
13
Chapter 13: Natural Resourses
6 questions
14
Chapter 14: Improvement in Food Resources
15
Chapter 15: Gravitation
29 questions
Question
Easy
Solving time: 5 mins
Explain the following giving examples.
Saturated solution
Pure substance
Colloid
Suspension
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Text solution
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(a) The term saturated solution is used in chemistry to define a solution in which no more solvent can be dissolved. It is understood that saturation of the solution has been achieved when any additional substance that is added results in a solid precipitate or is let off as a gas.
Eg: Saltwater
(b) Pure substance: A material that is composed of only one type of particle.
Eg: Gold, oxygen and water.
(c) Colloid: A homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance.
Eg: Gels, sols and emulsions.
d) Suspension: A suspension is a heterogeneous mixture in which solute-like particles settle out of a solvent-like phase sometime after their introduction. We apply the word suspension when particles are big enough to eventually settle.
Eg: wheat flour and water.
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Practice more questions from Science (NCERT)
Q1
Pragya tested the solubility of three different substances at different temperatures and collected the data as given below(results are given in the following table, as grams of substance dissolved in grams of water to form a saturated solution).
What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate in grams of water at K?
Pragya makes a saturated solution of potassium chloride in water at and leaves the solution to cool at room temperature. What would she observe as the solution cools? Explain.
Find the solubility of each salt at . Which salt has the highest solubility at this temperature?
What is the effect of change of temperature on the solubility of a salt?
Q2
Explain the following giving examples.
Saturated solution
Pure substance
Colloid
Suspension
Saturated solution
Pure substance
Colloid
Suspension
Q3
Classify each of the following as a homogeneous or heterogeneous mixture:
Soda water, wood, air, soil, vinegar, filtered tea.
View allSoda water, wood, air, soil, vinegar, filtered tea.
Practice questions from Science (NCERT)
Question 1
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Question 2
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What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate in grams of water at K?
Pragya makes a saturated solution of potassium chloride in water at and leaves the solution to cool at room temperature. What would she observe as the solution cools? Explain.
Find the solubility of each salt at . Which salt has the highest solubility at this temperature?
What is the effect of change of temperature on the solubility of a salt?
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| Question Text | Explain the following giving examples. Saturated solution Pure substance Colloid Suspension |
| Updated On | Feb 21, 2023 |
| Topic | Is Matter Around Us Pure? |
| Subject | Science |
| Class | Class 9 |
| Answer Type | Text solution:1 Video solution: 3 |
| Upvotes | 326 |
| Avg. Video Duration | 6 min |
