MCQ 1. Chota Nagpur Plateau is- (1) An escarpland (2) A trough (3) Piedmont (4) A peneplain Ans. (4) A peneplain MCQ 2. The first sugar mill of Bihar was
Question: The ratio of pure gold in 18 carat gold is: (a) 60% (b) 75% (c) 80% (d) 100% Answer: (b) 75%
Question: Potassium Permanganate is used for purifying drinking water, because: (a) It dissolves the impurities of water (b) It is a sterilizing agent (c) It is an oxidising agent (d)
Question: Brass is an alloy of: (a) Nickel and Copper (b) Copper and Silver (c) Nickel and Zinc (d) Zinc and Copper Answer: (d) Zinc and Copper
Question: Of the following metals, which one pollutes the air of a big city? (a) Copper (b) Cadmium (c) Lead (d) Chromium Answer: (c) Lead
Question: Liquefied Petroleum gas (LPG) consists of mainly: (a) Methane, Ethane and Hexane (b) Ethane, Hexane and Nonane (c) Methane, Butane and Propane (d) Methane, Hexane and Nonane Answer: (c)
Question: Which of the following is used as lubricant? (a) Graphite (b) Silica (c) Diamond (d) Iron Oxide Answer: (a) Graphite
Question: Which of the following is not a physical change? (a) Oxidation (b) Reduction (c) Sublimation (d) Decomposition Answer: (c) Sublimation
Question: Which of the following alloys is used for making magnets? (a) Duralumin (b) Stainless Steel (c) Alnico (d) Magnelium Answer: (c) Alnico
Question: Which of the following is not a chemical reaction? (a) Burning of paper (b) Digestion of food (c) Conversion of water into steam (d) Burning of coal Answer: (c)
Question: Cooking oil can be converted in vegetable ghee by the process: (a) Oxidation (b) Crystallization (c) Distillation (d) Hydrogenation Answer: (d) Hydrogenation
Question: Bleaching powder is made from: (a) Sulphur dioxide and gypsum (b) Chlorine and Charcoal (c) Soda ash and lime (d) Lime and Chlorine Answer: (d) Lime and Chlorine
Question: Washing soda is the common name of: (a) Calcium Carbonate (b) Calcium Bi-Carbonate (c) Sodium Carbonate (d) Sodium Bi-Carbonate Answer: (c) Sodium Carbonate
Question: Which of the following is the best conductor of electricity? (a) Copper (b) Mica (c) Zinc (d) Silver Answer: (d) Silver
Question: Which of the following is not known as green house gas? (a) Methane (b) Nitrous oxide (c) Carbon dioxide (d) Hydrogen Answer: (d) Hydrogen
Question: Stainless steel is an alloy of: (a) Iron, Carbon and Nickel (b) Iron and Manganese (c) Iron, Chromium and Zinc (d) Iron, Chromium and Nickel Answer: (d) Iron, Chromium
Question: Tetraethyl lead is used as: (a) Mosquito repellent (b) Pain Killer (c) Fire extinguisher (d) Petrol additive Answer: (d) Petrol additive
Question: Gobar gas contains mainly: (a) Methane (b) Carbon dioxide (c) Butane (d) Carbon Monoxide Answer: (a) Methane
Question: The gas used to extinguish fire is: (a) Neon (b) Nitrogen (c) Carbon dioxide (d) Carbon Monoxide Answer: (c) Carbon dioxide
Question: The most abundant metal in the earth’s crust is: (a) Zinc (b) Copper (c) Aluminum (d) Iron Answer: (c) Aluminum
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