61. Electric bulb filament is made of
Copper
Aluminium
Lead
Tungsten
62. In an earthen pitcher, the water remains cold due to the process of
condensation
evaporation
sublimation
none of these
63. Which one of the following gases is used for the purification of drinking water?
Sulphur dioxide
Chlorine
Fluorine
Carbon dioxide
64. Which one of the following is not an explosive matter?
Trinitro toluene
Dinitro glycerine
Cyclo Trimethylene trinitramine
Nitrochloroform
65. Grains of Basmati rice get elongated on being cooked because of higher content of
lysine
amylose
sugar
oil
66. What amongst the following is responsible for formation of the stone in a human kidney?
Calcium acetate
Calcium oxalate
Sodium acetate
Sodium benzoate
67. Bauxite is the ore of
iron
aluminium
copper
gold
68. Bronze is an alloy of
copper and tin
copper and silver
copper and zinc
copper and lead
69. The alkaloid caffeine is present in
Tea only
Coffee only
Tea and coffee both
Lemon water
70. Which of the following is/are used as disinfectant(s) of water?
Ozone
Chlorine dioxide
Chloramine
All of these
71. Which one of the following is used in the treatment of blood cancer?
Iodine-131
Sodium-24
Phosphorus-32
Cobalt-60
72. Which yeast is used for commercial production of ethanol?
Candida albicans
Saccharomyces cerevisiae
Candida sloofi
Leucosporidium frigidum
73. Which one of the following gases released from bio-gas plant is used as a fuel gas?
Butane
Propane
Methane
Ethane
74. Which one of the following is a natural polymer?
Bakelite
Silk
Kevlar
Lexan General Science G24
75. Urea is
a nitrogen-containing organic compound
a nitrogen-containing inorganic compound
a plant hormone
an endergonic compound
76. The stench due to leakage from LPG cylinder is because of
methane
propane
butane
ethyl mercaptan
77. Which one of the following organic acids is abundant in grapes, tamarind and banana?
Acetic acid
Citric acid
Lactic acid
Tartaric acid
78. Which of the following fuels would produce minimum environmental pollution?
Hydrogen
Diesel
Kerosene
Coal
79. Which of the following is the main component of the natural gas?
Ethane
Butane
Carbon mono-oxide
Methane
80. A powerful eye irritant in the smoke is
Ozone
Sulphur dioxide
Carbon dioxide
Peroxyacetyle nitrate
12 Total Test
360 Total Question
Scientifically designed for PCS
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IAS PCS SCC and others
75 Total Test
2250 Total Question
Scientifically designed for PCS
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IAS PCS SCC and others
69 Total Test
2070 Total Question
Scientifically designed for PCS
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