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chemistry 15 man made substances
Pg.No.
1
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Page 1
Q.1. Substances added to the soil to make up the deficiency of essential elements are known as?
Q.2. Which are the two important categories of fertilizers?
Q.3. Coloured substances used for coloring textiles, foodstuffs, silk, wool etc. are known as?
Q.4. Which are the different types of dyes?
Q.5. Which dyes are polynitro derivatives of phenol where nitro group acts as a chromophore and hydroxyl group as auxochrome?
Q.6. Nitro dyes are not used industrially because?
Q.7. Which dyes are characterised by the presence of azo group (-N=N-) as chromophore?
Q.8. Which dyes contain the paraquinoid moiety as a chromophore and -OH, -NH
2
or -NR
2
as auxochrome?
Q.9. Triphenylmethane dyes are not fast to?
Q.10. Triphenylmethane dyes are mainly used for?
Q.11. Malachite green is used for dying?
Q.12. Which dyes are fixed on the fibre with the help of a mordant?
Q.13. Which type of mordant is used for acidic dyes?
Q.14. Which type of mordant is used for basic dyes?
Q.15. Which dyes are insoluble in water and are introduced into fibre in its soluble form also known as leuco form?
Q.16. Indigo is a type of?
Q.17. Indigo is used to dye?
Q.18. Cement is a complex material containing the silicates of?
Q.19. Paste of sand, cement and water is known as?
Q.20. Mixture of stone chips (gravel) sand, cement and water is known as?
Q.21. Concrete with steel bars and wires is known as?
Q.22. Super cooled liquid is known as?
Q.23. What is the common constituent of glass?
Q.24. What is the chemical formula for soda glass or soda lime glass?
Q.25. Which is the cheapest of all glasses?
Q.26. Soda glass is used for?
Q.27. Which glass is used for chemical apparatus, beakers, flasks, funnels etc?
Q.28. Which glass is used for making lenses, prisms, and optical instruments like telescopes and microscopes?
Q.29. Optical glass is made of?
Q.30. What are the different types of optical glass?
Q.31. What is the basic oxide in crown glass?
Q.32. What is the basic oxide in flint glass?
Q.33. Which glass used in spectacles absorbs ultraviolet rays which are harmful for eyes?
Q.34. Which glass is used for making decorative items?
Q.35. Which substance used for making red colored glass?
Q.36. Which substance used for making green colored glass?
Q.37. Which substance used for making violet colored glass?
Q.38. Which substance used for making blue colored glass?
Q.39. Which substance used for making brown colored glass?
Q.40. Milky glass is prepared by adding?
Q.41. Glass laminates is made by fixing polymer sheets between layers of?
Q.42. Polythene is used to make?
Q.43. Polypropene is used to make?
Q.44. Polyvinyl Chloride (PVC) is used to make?
Q.45. Nylon (Polyester) is used to make?
Q.46. Teflon is used to make?
Q.47. Vinyl rubber is used to make?
Q.48. Polystyrene is used to make?
Q.49. Poly Styrene Butadiene is used to make?
Q.50. Bakelite is used to make?
Q.51. Lexan is used to make?
Q.52. Melamine is used to make?
Q.53. Which paint glows when exposed to light?
Q.54. Soaps are sodium and potassium salts of?
Q.55. Soaps are made by?
Q.56. Detergents are made from?
Q.57. Medicinal compounds produced by moulds and bacteria, capable of destroying or preventing the growth of bacteria in animal systems are known as?
Q.58. Substances formed in blood , tending to inhibit or destroy harmful bacteria are known as?
Q.59. Medicine used against poison , or to prevent a disease from having effect is known as?
Q.60. Substances capable of simulating formation of antibodies are known as?
Q.61. Substance used to lower body temperature is known as?
Q.62. Substance used to kill pests are known as?
Q.63. Substance used to kill insects are known as?
Q.64. Substance used to kill fungi are known as?
Q.65. DDT and aluminium phosphate gammexine are examples of?
Q.66. Thiram and Bordeanx mixture are examples of?
Q.67. Substance used to kill rats is known as?
Q.68. Aluminium phosphide is an example of?
Q.69. Benzipram and benzadox are examples of?
Q.70. Painkillers are known as?
Q.71. Aspirin, Paracetamol and morphine are examples of?
Q.72. Quinine derivatives are used as?
Q.73. Which substance is used in medicines to empty bowels?
Q.74. Which substance is used as solvent and anaesthetic?
Q.75. Which sweet substance is used for diabetic patients?
Q.76. What is full form of DDT?
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