Chemistry Short Question part-2

Chemistry Multiple Choice Short Questions 2:

welcome to Digital odisha, here we discuss some chemistry multiple short questions , chemistry short questions, chemistry short questions, chemistry short questions mcq, digital odisha chemistry notes , chemistry short question , chemistry short question, chemistry short question, chemistry short question pdf  for odisha exam.

Chemistry Short Questions pdf 2

16. Philosopher’s Wool is
(a) Zinc carbonate
(b) Zinc sulphate
(c) Zinc oxide
(d) Zinc blende
17. Synthetic detergents are made from
(a) Sodium stearate
(b) Sodium salt of benzene sulphonicacid
(c) Sodium salt of benzene car¬ boxylic acid
 (d) Sodium palmitate
18.The sewage obtained from water closets and urinals is known as
(a) Sanitary waste
(b) Industrial waste
(c) Garbage
(d) Sullage
19. Maximum permissible concentration of total hardness in drinking water is
(a) 50
(b) 100
 (d) 500
20. Electric fuse is an alloy of
(a) tin and lead
(b) zinc and lead
(c) copper and iron
(d) carbon and tin
21. The chemical used for cloud seeding for artificial rains is
(a) Silver Nitrate
(b) Potassium Bromide
(c) Silver Iodide
(d) Potassium Nitrate
22. Which among the following is liquid non-metal?
(a) Mercury
(b) Bromine
(c) Water
(d) Alcohol
23. In silvery paints, the main constituent present is
(a) Aluminium powder
(b) Silver powder
(c) Lead powder
(d) White lead
24. Which one of the following is a greenhouse gas?
(a) Nitrogen
(b) Helium
(c) Carbon dioxide
(d) Sulphur dioxide
25. Which of the following is a method/process of disposing of solid waste which cannot be reused or recycled?
(a) Landfills
(b) Incineration
(c) pyrolysis and Gasification
(d) All the above
 26. Laughing gas is
(a) Nitric oxide
(b) Nitrous oxide
(c) Nitrogen trioxide
(d) Nitrogen pentoxide
27. Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful
(a) solar ultraviolet radiation
(b) solar infrared radiation
(c) CO2 in the air
(d) SO2 in the air
28. Which of the following is not a greenhouse gas?
(a) Hydrogen
(b) Carbon dioxide
(c) Nitric oxide
(d) Chlorofluorocarbon
29. Wax used for making candle is chemically a mixture of
(a) aliphatic hydrocarbons
(b) aromatic hydrocarbons
(c) cyclic hydrocarbons
(d) aliphatic and aromatic hydrocarbons
30. Litmus is obtained from
(a) a bacterium
(b) a fungus
(c) an alga
(d) lichen

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31. Vinegar made by fermentation from cane sugar contains
(a) palmitic acid
(b) lactic acid
(c) citric acid
(d) acetic acid
32. Photo oxidation process is initiated by
(a) light
(b) heat
(c) oxygen
(d) catalyst
33. Ultraviolet radiation striking the earth is due to the depletion of
(a) carbon monoxide
(b) carbon dioxide
(c) ozone
(d) oxygen
34. Major gaseous pollutant of the thermal power station is
(a) HjS
(b) NH3
(c) N02
(d) S02
35. The process of removing calcium and magnesium from hard water is known as
(a) Sedimentation
(b) Filtration
(c) Flocculation
(d) Water softening
36. The tip of the match-stick contains
(a) phosphorus pent oxide
(b) white phosphorus
(c) red phosphorus
(d) phosphorus trichloride
37. Match the source in Column B with the product of Column A.
Column A(Product)         Column B(Source)
(a) Formic acid                       (a) Lemon
(b) Citric acid                          (b) Tamarind
(c) Tartaric acid                      (c) Ants
(a) 3 2 1
(b) 3 1 2
(c) 2 3 1
(d) 2 1 3
38. Commercially, sodium bicarbonate is known as
(a) Washing soda
(b) Baking soda
(c) Bleaching powder
(d) Soda ash
39. An emulsifier is an agent which
(a) stabilises an emulsion
(b) aids the flocculation of an emulsion
(c) accelerates the dispersion
(d) homogenizes an emulsion
40. Mortar is a mixture of water, sand and
(a) Slaked lime
(b) Quicklime
(c) Limestone
(d) Gypsum
41. Which of the following substance is highly plastic?
(a) Quartz
(b) Mica
(c) Granite
(d) Clay
42. The National Chemical Laboratory (India) is located in
(a) Mumbai
(b) Bangaluru
(c) Hyderabad
(d) Pune
43. Aspirin is common name of
(a) Salicylic Acid
(b) Salicylate
(c) Methyl Salicylate
(d) Acetyl Salicylic Acid
44. Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
(a) Helium
(b) Nitrogen
(c) Oxygen
(d) Hydrogen
45. Which one of the following metals. Does not react with water to produce Hydrogen?
(a) Potassium
(b) Cadmium
(c) Sodium
(d) Lithium

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46. Ozone consists of
(a) Oxygen only
(b) Oxygen and Nitrogen
(c) Hydrogen and Carbon
(d) Oxygen and Carbon
47. One of the constituents of tear gas is
(a) Ethane
(b) Ethanol
(c) Ether
(d) Chloropicrin
48. An atomic clock is based on transitions in
(a) Sodium
(b) Caesium
(c) Magnesium
(d) Aluminium
49. Silver halides are used in photographic plates because they are
(a) oxidized in air
(b) soluble in hypo solution
(c) reduced by light
(d) totally colourless
50. Tetra ethyle lead (TEL) is
(a) a catalyst in burning fossil fuel
(b) an antioxidant
(c) a reductant
(d) an antiknock compound

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