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

Read and download free pdf of CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set D. 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
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?

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 dissolved in 90 ml of water. 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 fractionational 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.
 
13.a) What is solute and solvent in aerated drinks?
 
b) Given a solution of substance 'A' how will you test whether it is saturated or unsaturated with respect to 'A' at the given temperature.
 
Questions:
 
1.Draw a neat labeled diagram of the apparatus used for separating acetone and water (forming a miscible mixture) from their mixture.
 
2.Two miscible liquids A and B are present in a solution. The boiling point of A is 60° C while that of B is 98° C. Suggest a method to separate the components of mixture. Why are they separated by this process ?
 
3.Which technique, crystallization or evaporation is better to obtain salt from sea water?
 
4.Name the technique used for separation of those solutes that dissolve in the same solvent and give any two applications of this technique.
 
5.What separation technique will you apply for the separation of the following?
 
a) Sodium chloride from its solution b) Tea leaves from tea
 
c) Different pigments from an extract of leaves d) Butter from curd
 
e) Fine mud particles suspended in water f) Iron pins from sand
 
6.Describe the method used for separating the components of blood. List its any two applications.
 
7.Write any three differences between a compound and a mixture.
 
8.Classify the following into physical or chemical change :
 
(i)burning of a candle (iv) fading of clothes
 
(ii)Tarnishing of silver spoon (v)mixing of iron filings and sand
 
(iii)Sublimation of iodine (vi) Electrolysis of water
 
9.Distinguish between elements and compounds with one example of each.
 
10.Elements are classified as metals, non-metals and metalloids. Give any one property of each. Also give one example of each.
 
11.State the principle involved in the following separating techniques.
 
i) Chromatography ii) Distillation iii) Evaporation
 
12. How will you obtain blue dye from blue ink experimentally? How is this technique different from distillation?
 
Value Based Question:
 
Arushi's mother always squeezes water from wet clothes in the spinner of washing machine and then uses it to clean the floor.
 
a) Write the principle of the technique used in the above mentioned process.
 
b) Write one more application of this technique.
 
c) What do you learn from Arushi's mother?



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

The above practice worksheet for Chapter 2 Is Matter Around Us Pure has been designed as per the current syllabus for Class 9 Science released by CBSE. Students studying in Class 9 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 9 Science on a daily basis. All the latest practice worksheets with solutions have been developed for Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 9 Science students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 9 Science to develop the Science Class 9 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 9 Science designed by our teachers. After solving these you should also refer to Class 9 Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 9 Science which you can use to further make yourself better in Science.

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