CBSE Class 10 Science Question Paper 2014 Foreign Set 01

CBSE Class 10 Science Question Paper 2014 Set 1 - Foreign. 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 practiced to get better marks in examinations.

SECTION A

1.State the modern periodic law of classification of elements.

2. All the variations in a species do not have equal chances of survival. Why ?

3. List two advantages of building dams.

4. How do Plasmodium and Leishmania reproduce ? Write one difference in their mode of reproduction. 

5 The linear magnification produced by a spherical mirror is +1/3 . Analysing this value state the (i) type of mirror and (ii) position of the object with respect to the pole of the mirror. Draw ray diagram to justify your answer.

6. We often observe domestic waste decomposing in the bylanes of residential colonies. Suggest ways to make the residents realise that the improper disposal of their waste is harmful to the environment.

7. List two products of combustion of fossil fuels other than carbon dioxide. What happens when combustion takes place in insufficient air ? Name a green house gas.

8. What are isomers ? Why can’t we have isomers of first three members of alkane series ? Draw the possible structures of isomers of butane, C₄H₁₀.

9.Write the chemical equations to show what happens when

(i) an ester reacts with a base ?

(ii) methane is treated with chlorine in the presence of sunlight ?

(iii) ethanol reacts with ethanoic acid in the presence of sulphuric acid ?

Please click the link below to download pdf file of CBSE Class 10 Science Question Paper 2014 Set 1 - Foreign.