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IIT JEE Environmental Chemistry set 1

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1. Environmental pollution refers to




2. Water is often treated with chlorine to




3. Which of the following cause water pollution ?




4. Disease caused by eating fish found in water contaminated with industrial waste having mercury is




5. Photochemical smog is related to pollution if




6. As it passes into food chain the concentration of DDT




7. Air pollution is not caused by




8. Which of the following reacts with haemoglobin of blood and produce toxic effect.




9. Drained sewage has B.O.D.




10. Photochemical smog is generally formed




11. Ozone layer of stratosphere requires protection from indiscriminate use of




12. Which of the following play significant role in depletion of ozone layer ?




13. DDT is.




14. Which of the following is a mode of controlling pollution in big cities?




15. Chief source of water and soil pollution is




16. Which of the following is major sink for carbon monoxide ?




17. Most hazardous metal pollutant of automobile exhaust is




18. Whcih of the following is biodegradable pollutant ?




19. Photochemical smog consists of excessive amount of X in addition to aldehydes ketones PAN etc. X is




20. Water pollution is due to




21. Fish die in water bodies polluted by sewage due to




22. The agricultural field that produces maximum methane gas intoatmosphere is




23. Burning of fossil fuels is the main source of which of the following pollutant?.




24. Which of the following pose threat to historical monument Taj ?




25. Domestic waste mostly constitutes




26. Environmental pollution affects




27. Carbon dioxide content in atmosphere is




28. The presence of which of the following in drinking water is responsible for mottling of teeth




29. U.V. radiation from the sun causes a reaction in the atmosphere that leads to production of




30. Minamata disease is because of pollution of




31. Sewage water is purified by




32. The gas responsible for causing Bhopal tragedy was




33. Carbon monoxide emitted by automobiles prevents transport of oxygen in body due to




34. BOD refers to




35. Ultra-violet radiation causes




36. The pollutants released by jet aeroplanes inthe atomsphere as fluorocarbons are called




37. Ozone hole is maximum spread over




38. Atmosphere of metropolitan cities is mostly polluted by




39. Ozone depletion in stratosphere will result in




40. Cyclone collector is used for minimising




41. Addition of phosphate and nitrate/fertilizers into water leads to




42. Phosphate pollution is caused by




43. The chemical species released by chloroflurocarbons which are harmful to ozone is




44. The region of atmosphere that extends from 50 km 85 km in altitude is called




45. From among the followings the major cause of pollution of air big cities?




46. Which of the following water pollutants encourage the formation of algae ?




47. Which one is not a pollutant in the true sense of the word?




48. Measurement of rate of oxygen utilisation by the unit volume of polluted water over a period of time is referred to as.




49. Which one of the following is a source of energy but does not cause pollution ?




50. Green chemistry refers to




51. The approximate loaded Q due to dielectric loss for a dielectric resonator given the loss tangent is 0.0001 is:




52. Which of the following is not a system database?




53. Point out the correct statement.




54. Which of the following holds temporary data?




55. Which is the most important system database?




56. Point out the correct statement.




57. Which of the following database is used by SQL Server Agent?




58. How many types of system databases are present in SQL Server 2008?




59. Which of the following system database occupies more space and memory?




60. The _________ database stores basic configuration information for the server