31. Which of the following is common example of fibres
32. Which of the following is not an example of addition polymer
33. Which of the following is thermo setting polymer?
34. Which of the following represents an analgesics
35. Which of the following terms means pain killing
36. Which of the folowing drugs is an analgesic
37. Which of the folowing is a common antacid acid
38. Which ofthe following is an insecticide
39. Which one of the following is a synthetic polymer
40. Which one of the following is an antibiotic
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