CBSE Class 10 Science Sample Paper 2012 (4)

CBSE Class 10 Science Sample Paper 2012 (4). Based on CBSE and NCERT guidelines. The students should practice these Question Papers to gain perfection which will help him to get more marks in CBSE examination. Please refer to more CBSE Class 10 question papers in other links. The CBSE Question papers are prepared based on trend in past examinations and expected questions in CBSE exams. Its always recommended by CBSE to practice the papers released by CBSE to get better exams in CBSE exams. CBSE Last Year Question Papers for class 10 for final/ term/ SA1/ SA2 Examinations conducted by Central Board of Secondary Education for all CBSE affiliated schools in India and abroad. Please refer to more CBSE Class X sample papers, question papers, HOTs etc in other links.

1] Name the type of spherical mirror which

   (a) has +ve focal length.

   (b) always forms a virtual image.

2] "Save the Tiger" campaign is being over emphasized these days by our Government. What may be the possible reason?

3] Give any two ways in which biodegradable substances would affect the environment.

4] What are sexually transmitted diseases? Name four such diseases. Which one of them damages the immune system of human body?

    (i) HIV-AIDS (ii) Warts

    (iii) Syphilis (iv) Gonorrhea

5] Both carbon and silicon belong to group 14 of the periodic table. But the tendency to exhibit catenation in carbon is much more than in silicon. Explain.

6] List any two causes of our failure to sustain availability of underground water.

7] (a) Refractive indices of media A, B, C and D are given below : Medium Refractive Index

Please refer to attached file for CBSE Class 10 Science Sample Paper 2012 (4).

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