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chemistry 09 carbon compounds
Pg.No.
1
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Page 1
Q.1. What is the atomic number of carbon?
Q.2. What is mass number of carbon?
Q.3. Carbon is placed in which group of periodic table?
Q.4. The substance which have same chemical properties, but different physical properties are known as?
Q.5. Diamond, graphite, charcoal are allotropes of?
Q.6. Whci is the purest form of carbon?
Q.7. Which is the hardest known natural substance?
Q.8. What is the specific gravity of diamond?
Q.9. Is diamond good conductor of heat and electricity?
Q.10. What is the refractive index of diamond?
Q.11. When diamond is heated at more than 1500 degree C it turns to?
Q.12. What is the crystal structure of diamond?
Q.13. What is the type of bond between carbon atoms in diamond?
Q.14. Black diamond is also known as?
Q.15. Black diamond contains traces of?
Q.16. Graphite is also known as?
Q.17. Is graphite good conductor of heat and electricity?
Q.18. What is the specific gravity of graphite?
Q.19. What are the physical properties of graphite?
Q.20. What is the hybridization of carbon in graphite?
Q.21. What is thestructure of graphite crystal?
Q.22. Is graphite chemically more reactive than diamond?
Q.23. Which force holds the layer structure of graphite?
Q.24. Which substance is used for making electrodes of electric furnaces?
Q.25. Which substance is used for making refractory crucibles?
Q.26. Pencil lead is made up of?
Q.27. Which substance is used as moderator in nuclear reactor?
Q.28. Is graphite used as lubricant in machinery?
Q.29. Is graphite used as reducing agent in stell manufacturing?
Q.30. Wood charcoal is obtained from?
Q.31. Sugar charcoal is obtained from?
Q.32. Bone or animal charcoal is obtained from?
Q.33. Coke charcoal is obtained from?
Q.34. Compounds made of carbon and hydrogen only are known as?
Q.35. What are the different types of hydrocarbons?
Q.36. The hydrocarbons in which carbon atoms are singly bonded are known as?
Q.37. Saturated hydrocarbons are also known as?
Q.38. What is general formula for alkanes?
Q.39. The hydrocarbons in which carbon atoms are doubly or triply bonded are known as?
Q.40. The hydrocarbons in which at least one pair of carbon atoms are doubly bonded are known as?
Q.41. What is general formula for alkenes?
Q.42. The hydrocarbons in which at least one pair of carbon atoms are triply bonded are known as?
Q.43. What is general formula for alkynes?
Q.44. Homocyclic compounds which contain atleast one benzene ring in which carbon atoms are linked to one another by alternate single and double bonds, are known as?
Q.45. Which hydrocarbons have sweet smell?
Q.46. Two or more compounds having same molecular formula but different physical and chemical properties are known as?
Q.47. The phenomena of having isomers is known as?
Q.48. Macro molecule formed by combination of simple molecules is known as?
Q.49. The process by which simple molecules are converted to polymer is known as?
Q.50. Protein, nuclic acid, cellulose, starch are ________ polymers?
Q.51. What is plastic?
Q.52. Lac is _______ plastic?
Q.53. What are the different types of plastics?
Q.54. The polymers which can be easily softened repeatedly when heated and hardened when cooled with little changes in their properties, are known as?
Q.55. Polyethylene, polystyrene, polyvinyl chloride, teflon are examples of?
Q.56. The polymers which undergo permanent change on heating are known as?
Q.57. Bakelite, glyptal, terrylene are examples of?
Q.58. Which polymer is obtained from phenol and formaldehyde in presence of either an acid or a base catalyst?
Q.59. Which polymer is used for making combs, fountain pens, photographs records and electrical goods?
Q.60. Which polymer is capable of returning to its original length, shape or size after being stretched or deformed?
Q.61. Natural rubber is polymer of?
Q.62. Neoprene (synthetic rubber) is obtained from?
Q.63. Thiokol (synthetic rubber) is obtained from polymerisation of?
Q.64. Is thiokol chemically resistant polymer?
Q.65. Which polymer is used in the manufacture of hoses and tank linings, engine gaskets and rocket fuel?
Q.66. Which process is used to provide strength and elasticity to natural rubber?
Q.67. During vulcanization natural rubber is treated with?
Q.68. Which rubber is used for manufacturing rubber bands, gloves, tyres etc?
Q.69. Polymers which have strong intermolecular forces such as hydrogen bonding, are known as?
Q.70. Nylon 66, dacron, orlon are examples of?
Q.71. Synthetic fibre obtained from cellulose is known as?
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