JAVAHAR NAVODAY
I.I.T. FOUNDATION

Class : VI Time :1 Hr
Sub : Chemistry Marks :50
Name : _______________________________ Roll.No. __________

I. Answer the following questions : 4 x 4 = 16
1. Differentiate between metals and nonmetals.
2. Name the various method used forseparation of mixtures. Explain. The process of filtration.
3. How does chemistry help in the development of space research and electronics ?
4. Differentiate between solids, liquids and gases based on molecular thoery.
II. Define the following : 5 x 1 = 5
1. Chemistry 2. Element 3. Compound
4 Chemical formula 5. Heterogeneous mixture.
III. Write the symbol of the following elements : 10 x ½ = 5
1. Aluminum 2. Argon 3.Fluorina 4. Nickel
5. Uranium 6. Zinc 7. Oxygen 9. Sulphur 10. Magnesium
IV. Write the latin names of the following elements : 10 x ½ = 5
11. Copper 12. Gold 13. Silver 14. Tin 15. Tungsten 16. Potassium
17. Iron 18. Sodium 19. Lead 20. Mercury
V. Write the chemical name of the following formulae : 10 x ½ = 5
21. NaOH 22. Cao 23. HCl 24. CH4 25. NaCl 26. Na2Co3 27.pbs
28. HgS 29. AgNo3 30. CuSo4 5H2O.
VI. Write the chemical formulae of each of the following compounds. 6 x ½ = 3
31. Copper carbonate 32. Hydrogen Peroxide 33. Water vapour 34. Zinc oxide
35. Magnesium oxide 36. Hydrogen sulphide
VII. Write the number of atoms of each element in the following molecules.
37. (NH4) So4 38. Al2 (So4)3 39. Ca(HCO3)2
40. 12C12 H22 O11 41.4 KNO3 42. 6K2MnO4
VIII. Fill in the blanks :
43. ____________ is used for stiring liquid chemicals.
44. Apparatus used for measuring small and fixed volume of a liquid is ____________
45. Liquids such as Honey, ghee are sticky and difficult to pour hence they are called
________ liquids.
46. ________________ is a liquid metal.
47. A non metal which conduct electricity is ______________
48. ________________ gas is used in filling advertising glow tubes.
49. The constituents of _____________ can be separated by phyrical means.
50. Insoluble solid constituent left on the filtering material is called ______________
51. _______________ is the fulform of CFC.
52. Laboratory apparatus is made with special kind of glass called _____________