Chemistry Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.
61. Chemical name of bleaching powder is
(a) Calcium Chlorate
(b) Calcium Chloro hypochlorite
(c) Calcium hypochlorite
(d) Calcium bi Chloride
62. Which particle of atom has a negative charge
(a) Proton
(b) Neutron
(c) Electrons
(d) None of these
63. Which one of the following is also called Stranger Gas
(a) Xenon
(b) Argon
(c) Neon
(d) Nitrous oxide
64. Which of the following is not a mixture
(a) LPG
(b) Air
(c) Gasoline
(d) Distilled water
65. Which of the following is a fertilizer
(a) Sodium nitrate
(b) Sodium carbonate
(c) Sodium peroxide
(d) Sodium phosphate
66. The main constituent gas of LNG is
(a) Benzene
(b) Ethane
(c) Methane
(d) Butane
67. Which of the following is a chemical change
(a) Evaporation of water
(b) Burning of candle
(c) Glowing of an electric bulb
(d) Liquefaction of air
68. Which of the primary component of natural gas
(a) Methane
(b) Butane
(c) Propane
(d) Ethane
69. The substance used for artificial rain is
(a) Silver Bromide
(b) Silver Iodide
(c) Ammonium Nitrate
(d) All of the above
70. Which of these is not a noble gas
(a) Argon
(b) Hydrogen
(c) Krypton
(d) Neon
71. The most abundant element in the earth’s crust is
(a) Silicon
(b) Aluminium
(c) Nitrogen
(d) Oxygen
72. What will the color of litmus paper turn into when dipped in orange juice
(a) Red
(b) Purple
(c) Blue
(d) Orange
73. Which of the following gases is used in fire extinguishers
(a) Carbon monoxide
(b) Carbon dioxide
(c) Nitrogen oxide
(d) Sulphur dioxide
74. First organic chemical to be synthesized in Laboratory is
(a) Phosphoric Acid
(b) Oxalic Acid
(c) Urea
(d) Citric Acid
75. Which one of the following metals does not react with water to produce Hydrogen
(a) Sodium
(b) Potassium
(c) Lithium
(d) Cadmium
