CBSE Class 9 Chemistry Question Paper SA1 2011 (1)

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CBSE Class 9 Chemistry Question Paper SA1 2011 (1). Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

1.What is dry ice ? What happens when the pressure under which it is stored is decreased to 1 atmosphere ?

2.Why is glass or chinaware packed with straw ?

3.Name the processes by which CO2 and H2O move into and out of the cell ?

4.List in tabular form any two differences between homogeneous and heterogeneous mixtures.

5.(a) Define evaporation.

(b) Explain how the following factors affect the rate of evaporation of a liquid : (i) temperature of the liquid. (ii) area of the exposed surface. (iii) moisture in the surrounding air. (iv) increase in wind speed.

9.(i) Name the process or the separation technique you would follow to separate : (a) Dyes in black ink (b) Butter from cream (c) Ammonium chloride and common salt (d) Iron filings and sand (ii) State the principle used in separation by centrifugation

10.Based on the following characteristics distinguish in tabular form the behaviour of true solution, suspension and colloidal solution. (a) appearance (b) visibility (c) filterability (d) Tyndall effect (e) particle size


(a) What is distillation ? List the two conditions essential for using this as a method of separation of components of a mixture. (b) Draw a labelled diagram of the apparatus used to separate a mixture of two miscible liquids.

11.Compare in tabular form , the properties of Solids, Liquids and Gases with respect to : (i) Shape (ii) Volume (iii) Compressibility (iv) Diffusion (v) Fluidity or Rigidity


Account for the following : (a) For any physical state of a substance, the temperature remains constant during its change of state. (b) Water kept in an earthen pot becomes cool in summer. (c) We are able to sip hot tea from a saucer rather than from a cup

Please click the link below to download pdf file of CBSE Class 9 Chemistry Question Paper SA1 2011 (1).


Click on the text For more study material for Chemistry please click here - Chemistry

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