chemistry Miscellaneous Test 16 Welcome to your chemistry Miscellaneous Test 16 Name Email 1.Which of the following is used to remove the green colour from glass? (a) Manganese dioxide (b) Silicon dioxide (c) Sulphur dioxide (d) Titanium dioxide None 2.Which of the following can be used as a catalyst in Hydrogenation reaction? (a) Palladium (b) Barium (c) Iron (d) Tungsten None 3.Which acid makes the atmosphere of venus have thick white and yellowish clouds? (a) Sulphuric acid (b) Nitric acid (c) Acetic acid (d) Hydrochloric acid None 4.In the Canada Deuterium Uranium (CANDU) reactor, a natural uranium-fuelled reactor, the function of moderator and coolant is performed by: (a) heavy water (b) light water (c) carbon dioxide (d) sodium None 5. Which among the following combinations is present in higher amount in hard water? (a) Calcium and magnesium (b) Calcium and sodium (c) Sodium and magnesium (d) Sodium and manganese None 6.Sapphire and ruby are varieties of natural: (a) aluminium sulphide (b) aluminium hydroxide (c) aluminium carbonate (d) aluminium oxide None 7.Which of the following fuels has calorific value equal to petrol? (a)Methane (b)Kerosene (c)CNG (d)LPG None 8._______ is one of the liquids commonly used in liquid-in-glass thermometers. (a)Liquid nitrogen (b)Alcohol (c)Water (d)Liquid hydrogen None 9.After going through the processes of scouring a 99% of cotton is made up of which polymer? (a)Epoxy (b)Cellulose (c)Proteins (d)Teflon None 10. Rusting of iron is an example of__________. (a)Addition reaction (b)Displacement reaction (c)Dissociation reaction (d)Redox Reaction None 11.Which among the following is a secondary pollutant? (a)Ozone (b)Nitrogen Oxide (c)Carbon Monoxide (d)Sulphur Dioxide None 12.Which among the following elements has the highest density? (a)Hydrogen (b)Tungsten (c)Osmium (d)Fluorine None 13.Which of the following is not a type of Combination Reaction? (a)Adding water to quicklime (b)Heating of Calcium Carbonate (c)Formation of Water (d)Burning of Coal None 14.What is the peculiarity of the compound Yttrium Barium Copper Oxide (YBCO)? (a)It is a highly radioactive material (b)It is a high temperature superconductor (c)It is an almost 100% transparent material (d)It has got very high malleability and ductility None 15.Salt is obtained from seawater by which process ? (a)Sedimentation (b)Galvanisation (c)Evaporation (d)Sublimation None 16. _______ gas gives an orange glow when electricity is passed through it. It is generally used in fluorescent lighting. (a) Nitrogen (b) Hydrogen (c) Neon (d) Oxygen None 17.Rusting of iron is an example of _______. (a) combustion (b) corrosion (c) evaporation (d) condensation None 18.What is deposited on iron in the process of galvanization? (a)Copper (b)Zinc (c)Tin (d)Aluminium None 19.Which state is necessary for rusting of iron ? (a)Absence of O 2 (b)Presence of CO 2 (c)Absence of Water (d)Presence of O 2 None 20.What is the state of a matter called which is made after cooling a gas of very low density at a very low temperature? (a)Solid (b)Plasma (c)Liquid (d)Bose-Einstein Condensation None 21.Which of the following is NOT a process of water cycle? (a)Ammonification (b)Transpiration (c)Evaporation (d)Condensation None 22.Which of the following ions are responsible for hardness of water? (a)Sodium and Magnesium ions (b)Calcium and Magnesium ions (c)Potassium and Calcium ions (d)Sodium and Calcium ions None 23.Which of the following elements is used in antiperspirant deodorant ? (a)Aluminium (b)Iron (c)Copper (d)Sodium None 24.Which of the following is a Secondary Pollutant? (a)Smog (b)Carbon Monoxide (c)Fly Ash (d)Carbon Dioxide None 25.Which of the following gases causes explosion in coal mines? (a)Carbon dioxide (b)Nitrogen (c)Butane (d)Methane None 26.The joint process of vapourisation and condensation is called: (a) Sublimation (b) Chromatography (c) Distillation (d) Crystallisation None 27. The explosion of crackers is an example of _________ (a) Combustion (b) Precipitation (c) Decomposition (d)Evaporation None 28.Rust needs three components to occur, i.e., _______________ (a) Steel, iron and oxygen (b) Iron, oxygen and moisture (c) Iron, nitrogen and moisture (d) Helium, hydrogen and nitrogen None Time's up
