हेल्लो दोस्तों इस पोस्ट में हम Chemistry GK Online Test के बारे में बता रहे है जो आपको जरुर पसंद आएँगे। ये प्रश्न उत्तर सभी प्रतियोगी परीक्षाओं में पूछे जाते है। उम्मीदवार नीचे दिए गए प्रश्नोत्तरी की कोशिश कर सकते हैं। परीक्षा की अच्छी व जल्दी तैयारी करने के लिए उन उम्मीदवारों को प्रैक्टिस सेट, मॉक टेस्ट, ऑनलाइन टेस्ट इत्यादि की जरूरत पड़ेगी यहा हम Chemistry GK Online Test दे रहे है इन्हे जरूर पढ़े
Chemistry GK Online Test
1. Which of the following is used to make light weight but strong plastic
Polyvinyl chloride- Polyvinyl chloride
2. What is the product formed when sodium bicarbonate is hated strongly
Sodium carbonate- Sodium carbonate
3. The purest form of water in nature is
Rainwater- Rainwater
4. The Chemical that is used to ripen mango
Calcium carbide- Calcium carbide
Glacial acetic acid- Glacial acetic acid
6. ______ is a by product of sewage treatment and can be decomposed to produce biogas
Sludge- Sludge
7. Which one of the following forms of phosphorus is most reactive
White phosphorus- White phosphorus
9. Which of the following is used as non stick coating for cooking utensils
Teflon- Teflon
10. All isotopes of the same element have
The same atomic number but different atomic masses- The same atomic number but different atomic masses
11. Chemical name of vinegar
Acetic acid- Acetic acid
12. Which of the following substance smell similar to ethanoic acid
Vinegar- Vinegar
13. Synthetic detergents are prepared from
Hydrocarbons of petroleum- Hydrocarbons of petroleum
14. Thermal electricity is generated by using which of these
Coal, natural gas and petroleum- Coal, natural gas and petroleum
15. Besides CO2 The Other greenhouse gases
Ch4- Ch4
16. Bauxite is used as raw material by which of these
Aluminium- Aluminium
17. Which of the following causes radioactive pollution along the coast of Kerala
Thorium- Thorium
18. An emulsion is a colloidal solution
Liquid in liquid- Liquid in liquid
19. Bio fertilizer convert nitrogen to
Ammonia- Ammonia
20. Of the following commonly used material the one that is not an alloy is
Copper- Copper
21. Which one of the following non metals shows allotropy in the liquid state
Sulphur- Sulphur
22. Nylon threads are made of
Polyamide polymer- Polyamide polymer
23. Potassium permanganate is used for purifying drinking water can be cause
It is an oxidizing agent- It is an oxidizing agent
24. Nitric acid does not react with
Gold- Gold
25. Helium is added to the oxygen supply of deep sea divers because it is
Less soluble in blood than nitrogen at high pressure- Less soluble in blood than nitrogen at high pressure
26. The chemical name of Quartz is
Sodium silicate- Sodium silicate
27. Which of the following vitamins is generally excreted human in urine
Vitamin C- Vitamin C
28. The depletion in Ozone Layer is caused by
Chlorofluorocarbons- Chlorofluorocarbons
29. Which of the following has ph value
Pure water- Pure water
30. Activated charcoal is is used to remove colouring matter from pure substances by
Absorption- Absorption
31. Which of the following is a radioactive element
Uranium- Uranium
An acidic liquid- An acidic liquid
33. Which of the following is a commercial source of energy
Natural gas- Natural gas
34. Which one of the following takes place during a nuclear fission
Two light nuclei combine to form a heavy necklace- Two light nuclei combine to form a heavy necklace
35. Chemical properties of isotopes
Must be same- Must be same
36. Calcium salts used as fertilizer is
Calcium sulphate- Calcium sulphate
37. The manufacturing of iron from ironore involves the process of
Reduction- Reduction
38. Terylene is a condensation polymer of Ethylene glycol and which acid
Terephthalic acid- Terephthalic acid
39. Which one of the following fuels causes minimum environmental pollution
Hydrogen- Hydrogen
40. Which of the following is natural polymer
Starch- Starch
41. The antiparticle of an electron is
Positron- Positron
42. The source of energy that causes the least global warming is
Geothermal energy- Geothermal energy
43. The most abundant element in the earth's atmosphere is
Nitrogen- Nitrogen
44. Which of the following is usually not an air pollutant
Nitrous oxide- Nitrous oxide
45. Bronze is an alloy of
Copper and Tin- Copper and Tin
46. Atoms of same element having different mass number are called
Isotopes- Isotopes
47. Iodex a pain relief balm has the smell of
Methyl salicylate- Methyl salicylate
48. Brown stains in vessel and clothes indicate the presence of high quantities of in water
Magnesium- Magnesium
49. The list preferred technique in the disposal of municipal solid waste is
Bricketting- Bricketting
Hydrated aluminosilicate- Hydrated aluminosilicate
51. Which acid is used in Lead Storage battery
Sulphuric acid- Sulphuric acid
52. What is used in storage batteries
Lead- Lead
53. Formic acid is produced by
Red aunts- Red aunts
Waste water release from kitchen- Waste water release from kitchen
55. Calcium salts used as fertilizer is
Calcium sulphate- Calcium sulphate
56. Which is the heaviest metal among the following
Gold- Gold
57. Removal of carbon particles from air involves principal of
Electrophoresis- Electrophoresis
58. Nitrification is the biological process of converting
Ammonia into nitrates- Ammonia into nitrates
59. The solid waste is also known as
Sludge- Sludge
60. Which of the following is not a Donor atom
Aluminium- Aluminium
61. Chernobyl disaster is the result of pollution by
Radioactive waste- Radioactive waste
62. Warning ammonium chloride with sodium hydrochloride in a test tubes is an example
Open system- Open system
63. Sour taste of lemon is due to the presence of which of the following
Citric acid- Citric acid
64. Even after sunset in the air near the earth surface continue to receive high due to
Terrestrial radiation- Terrestrial radiation
65. Ozone saves the biosphere by absorbing high energy radiation called
Ultraviolet rays- Ultraviolet rays
66. Iron and manganese present as pollutants in water cannot be moved by
Chlorination- Chlorination
67. ____ is used for making vinegar
Acetic acid- Acetic acid
Chemically unreactive- Chemically unreactive
69. LPG is mostly liquefied
Butane- Butane
70. Which of the following gases is known as laughing gas
Nitrous oxide- Nitrous oxide
71. Silver gets corroded due to_____ in air
Hydrogen sulphide- Hydrogen sulphide
72. Chemical compositions of cement is
Lime stone,clay and gypsum- Lime stone,clay and gypsum
73. Highest percentage of carbon is found in which form of coal
Anthracite- Anthracite
74. Which of the following is not a nitrogenous fertilizer
Superphosphate- Superphosphate
75. The chief constituent of natural gas is
Methane- Methane
76. Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emissions
China,USA, EUROPEAN Union india- China,USA, EUROPEAN Union india
77. In are welding Argon is used becos of its
Low reactivity with metal- Low reactivity with metal
78. During fermentation of sugar the compound which is always formed is
Ethyl alcohol- Ethyl alcohol
79. What are the components responsible for acid rain
Sulphur dioxide and nitrogen oxide- Sulphur dioxide and nitrogen oxide
Earth's most abundant Mineral- Earth's most abundant Mineral
81. The biogas used for cooking is a mixture of which of the following
Methane and carbon dioxide- Methane and carbon dioxide
82. Phosphorus is kept in water because
It's ignition temperature is very low- It's ignition temperature is very low
83. When Ice cube are made the entropy of water
Decrease- Decrease
84. Sea water is saltier than rain water because
River wash away Salt from earth and pour them into the sea- River wash away Salt from earth and pour them into the sea
85. Copper substance when exposed to air gains a green coating due to the formation of
CuCo3 Cu(OH)2- CuCo3 Cu(OH)2
86. Brown stains in vessel and clothes indicate the presence of high quantities of in water
Magnesium- Magnesium
87. Which of the following is not a natural source of hydrocarbon
Mica- Mica
Used as an explosive- Used as an explosive
89. ______ gives hardness to stainless steel
Carbon- Carbon
90. Which of the following serve as an electrolyte in a Lead Storage battery
Sulphuric acid- Sulphuric acid
91. The most pure form of carbon among the options is
Anthracite- Anthracite
92. The compound used in prickly heat powder to prevent excessive sweating is
Boric acid- Boric acid
93. Which of the following acts as absorbent
Activated coconut charcoal- Activated coconut charcoal
94. Which one of the following is commonly used for pulp bleaching in the paper industry
Hydrogen peroxide- Hydrogen peroxide
95. Glycol is used to manufacture which of the following
Terylene- Terylene
96. Which of the process is known as nitrification
Conversion of ammonia to nitrate- Conversion of ammonia to nitrate
97. Which of the following is not soluble in water
Potassium sulphate- Potassium sulphate
98. When irons rusts its weight
Increases- Increases
100. For extinguishing fire we use
Carbon dioxide- Carbon dioxide
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