McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Union Public Service Commission (UPSC) , Indian Administrative Service (IAS) , Staff Selection Commission (SSC) .
Chapters
| 151. |
Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixing with Petroleum? |
| A. | Raise Octane Number |
| B. | Antioxidant Stabilizer |
| C. | Lead Scavanger |
| D. | Fuel Dye |
| Answer» A. Raise Octane Number | |
| 152. |
The most important contributor of sea salt is ____? |
| A. | Rivers |
| B. | Salty Rocks at bottom of sea |
| C. | Aquatic animals in Sea |
| D. | Atmosphere around sea |
| Answer» A. Rivers | |
| 153. |
Which among the following elements are generally find in free state? |
| A. | Group 11 elements |
| B. | Group 12 elements |
| C. | Group 13 elements |
| D. | Group 14 elements |
| Answer» A. Group 11 elements | |
| 154. |
Which among the following would cause the bright red colur due to bursting of crackers? |
| A. | Strontium |
| B. | Sodium |
| C. | Suphur |
| D. | Magnesium |
| Answer» A. Strontium | |
| 155. |
Who among the following scientists had discovered Radium? |
| A. | Marie Sklodowska-Curie and Pierre Curie |
| B. | André-Louis Debierne |
| C. | Kasimir Fajans |
| D. | Oswald Helmuth Göhring |
| Answer» A. Marie Sklodowska-Curie and Pierre Curie | |
| 156. |
Who among the following had given the Atomic Theory? |
| A. | Benzamin Franklin |
| B. | Madam curie |
| C. | Albert Einstien |
| D. | John Dalton |
| Answer» D. John Dalton | |
| 157. |
Which among the following oxides cause the Acid rain ? |
| A. | Carbon monoxide and carbon dioxide |
| B. | Nitrous oxide and sulphur dioxide |
| C. | Carbon dioxide and nitrous oxide |
| D. | Sulphur dioxide and carbon monoxide |
| Answer» B. Nitrous oxide and sulphur dioxide | |
| 158. |
Which among the following element is an essential constituent of acids? |
| A. | Nitrogen |
| B. | Hydrogen |
| C. | Helium |
| D. | Oxygen |
| Answer» B. Hydrogen | |
| 159. |
Highest percentage of nitrogen is found in which among the following fertilizers among the given options? |
| A. | Calcium ammonium nitrate |
| B. | Ammonium nitrate |
| C. | Calcium nitrate |
| D. | Urea |
| Answer» D. Urea | |
| 160. |
Which among the following is popularly called Hypo? |
| A. | Silver bromide |
| B. | Silver nitrate |
| C. | Sodium thiosulphate |
| D. | Sodium phosphate |
| Answer» C. Sodium thiosulphate | |
| 161. |
Which among the following is a Noble Gas? |
| A. | Nitrogen |
| B. | Hydrogen |
| C. | Oxygen |
| D. | Helium |
| Answer» D. Helium | |
| 162. |
Which of the following is an anti-knocking compound that has been phased out in many countries so far? |
| A. | Lead tetrachloride |
| B. | Tetra Ethyl Lead |
| C. | Ethyl acetate |
| D. | None of the above |
| Answer» B. Tetra Ethyl Lead | |
| 163. |
Which among the following is the main constituent of Biogas? |
| A. | Methane |
| B. | Ethane |
| C. | Propane |
| D. | Butane |
| Answer» A. Methane | |
| 164. |
Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates? |
| A. | Sulphonate method |
| B. | Nitrate method |
| C. | Zeolite method |
| D. | None of the above |
| Answer» C. Zeolite method | |
| 165. |
The free electrons are in the __________? |
| A. | Outermost orbit of the metals |
| B. | Innermost orbit of the metals |
| C. | Middle orbits of the metals |
| D. | Any orbit of the metals |
| Answer» A. Outermost orbit of the metals | |
| 166. |
Which of the following type of Coal, has maximum carbon content? |
| A. | Peat |
| B. | Lignite |
| C. | Antharacite |
| D. | Bituminious |
| Answer» C. Antharacite | |
| 167. |
What is the common name of Calcium Sulphate Hemihydrate? |
| A. | Bleaching powder |
| B. | Slaked lime |
| C. | Plaster of paris |
| D. | Detergent |
| Answer» C. Plaster of paris | |
| 168. |
Which among following is also known as white gold? |
| A. | Nickel |
| B. | Rhodium |
| C. | Platinum |
| D. | Palladium |
| Answer» C. Platinum | |
| 169. |
Which acid is described as HOOCCOOH? |
| A. | Oxalic Acid |
| B. | Acetic Acid |
| C. | Carbonic Acid |
| D. | Citric Acid |
| Answer» A. Oxalic Acid | |
| 170. |
Carnotite is a mineral of which among the following metals? |
| A. | Lead |
| B. | Uranium |
| C. | Aluminium |
| D. | Iron |
| Answer» B. Uranium | |
| 171. |
PVC is a polymer of ? |
| A. | Propane |
| B. | Vinyl chloride |
| C. | Styrene |
| D. | Carbonates |
| Answer» B. Vinyl chloride | |
| 172. |
When Sulphur is heated with rubber, the process is commonly known as ? |
| A. | Galvanization |
| B. | Sulphonation |
| C. | Vulcanization |
| D. | Hydrodesulfurization |
| Answer» C. Vulcanization | |
| 173. |
Which among the following chemicals is used in Photography? |
| A. | Silver Bromide |
| B. | Potassium Chloride |
| C. | Sodium Bromide |
| D. | Magnesium Chloride |
| Answer» A. Silver Bromide | |
| 174. |
Which among the following is major component of Gobar Gas? |
| A. | Butane |
| B. | Ethane |
| C. | Propane |
| D. | Metahne |
| Answer» D. Metahne | |
| 175. |
Which among the following is a common salt in Detergents? |
| A. | Sulphate |
| B. | Nitrate |
| C. | Sulphonate |
| D. | Carbonate |
| Answer» A. Sulphate | |
| 176. |
Potassium permanganate is used to purify water. Which among the following properties of Potassium permanganate helps in this work? |
| A. | sterilizing |
| B. | oxidizing |
| C. | reducing |
| D. | leaching |
| Answer» B. oxidizing | |
| 177. |
What happens to the weight of Iron, when it rusts? |
| A. | Increases for long time |
| B. | Decreases then increases |
| C. | Increases then decreases |
| D. | Remains the same |
| Answer» C. Increases then decreases | |
| 178. |
Lightest and most abundant chemical element, constituting roughly 75 % of the Universe‘s elemental mass. |
| A. | Carbon |
| B. | Aluminium |
| C. | Bauxite |
| D. | Hydrogen |
| Answer» D. Hydrogen | |
| 179. |
A cotton wick dipped in pure honey when ignited with a matchstick will ______? |
| A. | Burn Consistently |
| B. | Burn with cracking sound |
| C. | Does not burn at all |
| D. | Burns with too much smoke |
| Answer» A. Burn Consistently | |
| 180. |
The easily noticed smell of the LPG gas is because of which among the following? |
| A. | Butane |
| B. | Propane |
| C. | Methane |
| D. | Ethanethiol |
| Answer» D. Ethanethiol | |
| 181. |
Which compound of mercury is used as antiseptic? |
| A. | Mercuric sulphide |
| B. | Mercuric oxide |
| C. | Mercuric chloride |
| D. | Mercuric iodide |
| Answer» C. Mercuric chloride | |
| 182. |
Speed of sound is maximum in which among the following? |
| A. | Solids |
| B. | liquids |
| C. | Gases |
| D. | Vaccum |
| Answer» A. Solids | |
| 183. |
Which among the following metal is highest electrical conductivity as well as highest thermal conductivity? |
| A. | Gold |
| B. | Silver |
| C. | Platinum |
| D. | Iron |
| Answer» B. Silver | |
| 184. |
Calamine is an ore of which among the following? |
| A. | Zinc |
| B. | Copper |
| C. | Mercury |
| D. | Iron |
| Answer» A. Zinc | |
| 185. |
Trimethylxanthine is a chemical name of a stimulant which is found in tea and coffee. What is the popular name? |
| A. | Thein |
| B. | Caffeine |
| C. | Theobromine |
| D. | Theophylline |
| Answer» B. Caffeine | |
| 186. |
The popular drug ―Acetylsalicylic Acid‖ is commonly known by which among the following names? |
| A. | Paracetamol |
| B. | Aspirin |
| C. | Salsalate |
| D. | Wintergreen |
| Answer» B. Aspirin | |
| 187. |
What are the main constituents of LPG? |
| A. | Methane, Hexane, Ethane |
| B. | Methane, Butane, Propane |
| C. | Ethane, Pentane, Hexane |
| D. | Ethane, Methane, Pentane |
| Answer» B. Methane, Butane, Propane | |
| 188. |
Which among the following is known as White Vitriol? |
| A. | Zinc Sulphate |
| B. | Zinc Chloride |
| C. | Zinc Phosphate |
| D. | Zinc oxide |
| Answer» A. Zinc Sulphate | |
| 189. |
Which among the following is known as Quick Lime? |
| A. | CaO |
| B. | CaCO2 |
| C. | Ca(OH)2 |
| D. | CaCl2 |
| Answer» A. CaO | |
| 190. |
In which among the following forms, Nitrogen is present in Urea? |
| A. | Nitrite |
| B. | Nitrate |
| C. | Ammonium |
| D. | Amide |
| Answer» D. Amide | |
| 191. |
―Oil of mirbane‖ is the most common name of which among the following? |
| A. | Phenol |
| B. | Toluene |
| C. | Phenolphthalein |
| D. | Nitrobenzene |
| Answer» D. Nitrobenzene | |
| 192. |
Which among the following substances is most suitable for making Compact Discs? |
| A. | PVC |
| B. | Polyethylene |
| C. | Polyamides |
| D. | Polycarbonates |
| Answer» D. Polycarbonates | |
| 193. |
What is the common name of analgesic and antipyretic drug acetylsalicylic acid? |
| A. | Paracetamol |
| B. | Aspirin |
| C. | Wintergreen |
| D. | Trazodone |
| Answer» B. Aspirin | |
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