CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension

Class 9 Science Practice Set: True Solution Colloid Suspension

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TRUE SOLUTION, COLLOID & SUSPENSION
 
Experiment –2                      ………… Date:
 
Objective: To prepare:
 
(a) A true solution of common salt/ sugar
 
(b) A suspension of soil/chalk powder in water &
 
(c) A colloidal dispersion of starch/egg albumin/milk in water
 
Requirements: Test tubes, Test tube rack, Corks, milk, distilled water, common salt, chalk powder, water etc.
 
Procedure:
 
1. Take about 5-10 ml of distilled water in a test tube.
 
2. Add about a drop or 2 of milk to it and mix well.
 
3. Allow to stand for some time
 
4. Dissolve common salt in about 5 ml of water taken in a test tube to prepare a sample of true solution
 
5. Mix chalk powder in about 5 ml. of water to prepare a sample of suspension.

CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension 1

Precautions:
 
1. Use only dilute solutions
 
2. Do not add excess of milk
 
3. Use a very fine powder of chalk
 
Answer the following:
 
1. Give four examples of colloidal dispersions.
 
2. Are colloidal particles neutral of electrically charged?

CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension 2

3. Give the difference between colloidal dispersion and suspension.
 
Property                                 Colloid                                      Suspension
 
Particle size:                    10-7 to 10-5cm                                   >10-5 cm
 
Visibility:                               invisible                                       visible
 
                                          Translucent                                    Opaque
                                   
                                        Shows Tyndall effect                         Shows only when stirred
 
                                       Shows Brownian movement                Does not show
 
 
4 It is not correct to use the term “solution” to represent a colloid. Why?
 
5 Classify the following as suspension, true solution and colloid:
 
a. Sugar syrup b. chalk powder in water c. salt solution
 
d. soap solution e. S in CS2 f. human blood
 
Multiple choice type questions

CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension 2


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Download CBSE Practice Material: Class 9 Science True Solution Colloid Suspension

CBSE Practice Material: Class 9 Science True Solution Colloid Suspension

Explore reliable practice questions for True Solution Colloid Suspension tailored for Class 9 Science learners. Use these structured worksheets to evaluate preparedness and strengthen problem-solving skills.

NCERT-Aligned Questions and Solutions

Built using the official NCERT book for Class 9 Science, these practice materials provide reliable academic guidance. Pair your practice with our recommended NCERT solutions to master optimal problem-solving approaches.

Next Steps in Your Exam Preparation

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Are these Science Class 9 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 9.

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