CBSE Class 10 Science Question Paper 2013 Outside Delhi Set 01

CBSE Class 10 Science Outside Delhi Question Paper 2013 (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.

SCIENCE AND TECHNOLOGY (Theory)

Section-A

1. What is observed when a mixture of hydrogen and chlorine is exposed to sunlight ? What is the product formed ? 

2. Name two metals both of which are very ductile as well as very malleable. 

3. Biological reactions in our body depend on the presence of biocatalysts. What name is given to these catalysts ? How is their activity influenced by changes in temperature ? 1

4. A wire of resistance 20 ohm is bent in the form of a closed circle. What is the effective resistance between the two points at the ends of any diameter of the circle ? 

5. What are the values of

(i) the angle of incidence, and

(ii) the angle of reflection for normal incidence on a plane mirror surface ? 

6. Explain the principle involved in the launching of artificial satellites. 

7. Name the gas evolved when dilute sulphuric acid acts as sodium carbonate. Write the chemical equation for the reaction involved. 

8. What happens when crystals of washing soda are left open in dry air ? What is this change named as ? Name two industries based on use of washing soda. 

9. Distingusih between 'prompt', 'delayed' and 'spontaneous' fissions of nuclei. 

10. Light enters from air into diamond which has a refractive index of 2.42. Calculate the speed of light in diamond. The speed of light in air is 3.0×108 ms---1. 

Please click the link below to download pdf file of CBSE Class 10 Science Outside Delhi Question Paper 2013 (1)