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chemistry 13 non metals
Pg.No.
1
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Page 1
Q.1. How many non metals are there in periodic table?
Q.2. How many non metals are gases in periodic table?
Q.3. How many non metals are liquid in periodic table?
Q.4. Which non metal exist in liquid state?
Q.5. How many non metals are solid in periodic table?
Q.6. Electronegativity is the property of?
Q.7. Which elements are generally bad conductors of heat and electricity?
Q.8. Which non metals are semi conductors?
Q.9. Which is the lightest gas?
Q.10. Which are the isotopes of hydrogen?
Q.11. Which isotope of hydrogen is radioactive?
Q.12. How many neutrons are there in protium?
Q.13. Which is the only isotope in periodic table to have zero neutron?
Q.14. What is heavy water?
Q.15. Which compound is used in nuclear reactor as moderator?
Q.16. What is the use liquid hydrogen?
Q.17. Which element is known as range element?
Q.18. Which element may be kept in group I or group VII A of periodic table?
Q.19. Which water forms less froth with soap?
Q.20. Which water forms more froth with soap?
Q.21. Which soluble impurities leads to hardness of water?
Q.22. Which soluble impurities leads to temporary hardness of water?
Q.23. Which soluble impurities leads to permanent hardness of water?
Q.24. What are the methods to remove temporary hardness of water?
Q.25. What are the methods to remove permanent hardness of water?
Q.26. Which are the three isotopes of oxygen?
Q.27. Which is the allotrop of oxygen?
Q.28. Which gas present in atmosphere protects earth from ultraviolet rays of the sun?
Q.29. What is the percentage of nitrogen in atmosphere?
Q.30. Which gas is used for refrigeration?
Q.31. Which process is used to prepare ammonia?
Q.32. Is ammonia used as refrigenrent?
Q.33. Ammonia is used in the manufacture of?
Q.34. Which compound is used in fertilizers like urea and ammonium sulphate?
Q.35. Which compound is used in manufacture of Na
2
CO
3
and NaHCO
3
?
Q.36. Which compound is used in manufacture of ammonium salt?
Q.37. Is ammonia used for preparing explosives?
Q.38. Is ammonia used for preparing artificial silk?
Q.39. Which compound is used for nitrogen fixation in leguminous plants?
Q.40. Phosphorous is found in living beings in?
Q.41. Which are different allotropes of phosphorous?
Q.42. Which one is more reactive in white and red phosphorous?
Q.43. Halogens belong to which group of periodic table?
Q.44. Which halogen is used for preparation of UF
6
and SF
6
?
Q.45. Which compound is used for synthesis of chloro fluoro carbons and polytetra fluoro ethylene?
Q.46. Chlorofluoro carbons are also known as?
Q.47. Chlorofluoro carbons are used as?
Q.48. Which halogen is used for preparing ethylene bromide?
Q.49. Which compound is mixed in leaded petrol?
Q.50. Which halogen is used for preparing AgBr?
Q.51. What is the use of AgBr?
Q.52. Non-stick utensils are made up of?
Q.53. Which halogen is used for manufacture of Poly Venyl Chloride (PVC), insecticides, herbicides etc?
Q.54. Inert gases belong to which group of periodic table?
Q.55. Which are different inert gases?
Q.56. Which inert gas is not present in atmosphere?
Q.57. Which inert gas is used in arc welding and electric bulb?
Q.58. Is helium inflammable?
Q.59. Which gas is used in baloon weather indicator?
Q.60. Which inert gas is used in discharge tube glow light?
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