CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set C

Read and download free pdf of CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set C. Download printable Science Class 9 Worksheets in pdf format, CBSE Class 9 Science Chapter 2 Is Matter Around Us Pure Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 9 Assignments and practice them daily to get better marks in tests and exams for Class 9. Free chapter wise worksheets with answers have been designed by Class 9 teachers as per latest examination pattern

Chapter 2 Is Matter Around Us Pure Science Worksheet for Class 9

Class 9 Science students should refer to the following printable worksheet in Pdf in Class 9. This test paper with questions and solutions for Class 9 Science will be very useful for tests and exams and help you to score better marks

Class 9 Science Chapter 2 Is Matter Around Us Pure Worksheet Pdf

 
IS MATTER AROUND US PURE ?

1.Mark Questions:
 
1. How can we separate a mixture of two miscible liquids ?
 
2. What separation technique will you apply for separation of the following ?
 
(i) Ammonium chloride from sodium chloride.
 
(ii) Different pigments from the extract of flower petals.
 
3. How do we test purity of substances?
 
4. Name the process to separate the particles of colloid.
 
5. What is meant by fractionating column?
 
6. What are metalloids?
 
7. Suggest any one method by which we can increase the solubility of saturated solutions.
 
8. Why dry ice does not wet the surface on which it is kept?
 
2 Mark Questions:
 
1. State two reasons to justify that air is a mixture and water is compound.
 
2. Distinguish between homogeneous and heterogeneous mixture.
 
3. Classify the following mixtures as homogeneous and heterogeneous.
 
(i) Tincture of iodine (iv) Sugar solution
 
(ii) Smoke (iii) Brass
 
4. A solution of acetone contains 30 ml of acetone in 570 ml of water. Calculate the percentage concentration of the solute in the solution.
 
5. The concentration of a salt solution in terms of mass by mass percentage is 20 and the mass of the solution is 550 g. Determine the mass of solute present in the solution.
 
6. Identify the physical and chemical changes from the following
 
(i) Burning of magnesium in air (ii) Electrolysis of water
 
(iii) Tarnishing of silver spoon (iv) Sublimation of iodine
 
7. Fine beam of light entering through a small hole in a dark room, illuminates the particles in its path. Name the process associated and Explain.
 
8. Distinguish among soda water, milk and muddy water in a tabular form under the following heads :
 
(i)Stability
 
(ii)Filterability
 
(iii)Type of mixture
 
(iv) Tyndall effect
 
9. a) 110 g of salt is present in 550g of solution. Calculate the concentration of solution.
 
b) 10 ml of H2SO4 is dissolved in 90 ml of H2O. Calculate the concentration of solution.
 
10. State the condition for using the method of centrifugation to separate contents of a mixture. State the principle involved in this process.
 
11. Enumerate any two differences between simple distillation and fractional distillation.
 
12. Few iron filings and a pinch of sulphur powder are taken in a china dish and mixed properly. Justify the change, giving two points as physical/chemical change.
 
 
 
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CBSE Class 9 Science Chapter 2 Is Matter Around Us Pure Worksheet

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Chapter 2 Is Matter Around Us Pure worksheet Science CBSE Class 9

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