CBSE Science Sample Paper for Class 9 CBSE exams for CBSE Students. Based on CBSE and CCE 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 9 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 9 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 lX sample papers, question papers, HOTs etc in other links.
Sample Paper – 2012
Class – IX Subject – Science
UNIT 1: Atoms and Molecules
1 Mark Questions
Q1. How many atoms are present in-
a. H2S molecule
b. PO43- ion
Q2. According to Dalton’s atomic theory, what is the definition of atoms?
Q3. Calculate the molar mass of Nitric Acid HNO3 (atomic mass of H=1, N=14, 0=16)
Q4. Calculate the no of moles for 53g of He.
Q5. How many molecules are present in 34 g of ammonia?
2 Marks Questions
Q6. When ice melts, there is decrease in volume instead of increase. Why?
Q7. Calculate % composition of Sulphur element in H2SO4.
Q8. Which has more no. of atoms - 100 g of sodium or 100 g of iron. (Atomic mass of Na = 23u , Fe = 56u)
Q9. Give the names of the elements present in the following compounds
a. Baking Powder
b. Quick Lime
Q10. If one mole of oxygen atom weighs 16g, what is the mass in g of 1 atom of oxygen?
3 Marks Questions
Q11. Convert into mole:
a. 22 g of CO2
b 12 g of oxygen gas
Q12. Calculate the number of molecules of Sulphur (S8) present in 16 g of solid sulphur.
Q13. Calculate the number of aluminum ions present in 0.051g of aluminum oxide.
Q14. State the law of conservation of mass? What mass of silver Nitrate will react with 5.85g of sodium chloride to produce 14.35 g of silver chloride and 8.5 g of sodium Nitrate if law of conservation of mass is true?
Please refer to attached file for CBSE Class 9 Science Sample Paper 2014 (1)