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You Are On Question Answer Bank SET 2043
102151. Which scientific method is used for the production/extraction of Sodium carbonate?
Answer: Solvay process
102152. Which scientific method is used for the production/extraction of Sulphur?
Answer: Frasch process
102153. Which scientific method is used for the production/extraction of Aluminium?
Answer: Hall Heroult process
102154. Which scientific method is used for the production/extraction of Halogens?
Answer: Messenger method
102155. Which scientific method is used for the production/extraction of Nitrogen?
Answer: Dumas process
102156. The most abundant element in the atmosphere?
Answer: Nitrogen
102157. Percent of Nitrogen presence in atmosphere?
Answer: 78%
102158. Main content of protein?
Answer: Nitrogen
102159. Which gas controls burning?
Answer: Nitrogen
102160. The acid content of acid rain is?
Answer: Nitrous Oxide
102161. The compound used as anesthetic?
Answer: Nitrogen compound
102162. Largest single constituent of earth's atmosphere?
Answer: Nitrogen compound
102163. Gas known as laughing gas?
Answer: Nitrous Oxide
102164. Gas formed during lightning?
Answer: Nitrogen dioxide
102165. TNT - Tri Nitro Toluene is known as?
Answer: Trotyl
102166. RDX- Research Department Explosive is known as?
Answer: Cyclonite
102167. The nitrogen compound used as indelible ink (Voters' ink)?
Answer: Silver Nitrate
102168. Oxygen was experimentally prepared by?
Answer: Karl Scheele
102169. Oxygen was discovered by?
Answer: Joseph Priestly
102170. Element nature of oxygen was established by?
Answer: Lavoisier
102171. Burning is helped by which gas?
Answer: Oxygen
102172. What is the colour of oxygen?
Answer: colourless
102173. What is the taste of oxygen?
Answer: tasteless
102174. What is the odour of oxygen?
Answer: odourless
102175. The colour of liquid oxygen is?
Answer: Light blue colour
102176. Nature of oxygen?
Answer: Paramagnetic
102177. Most abundant element in earth crust?
Answer: Oxygen
102178. Number of atoms in?
Answer: Oxygen molecule - 2; Ozone - 3
102179. Ozone layer is found in?
Answer: Stratosphere
102180. The depletion of ozone layer is caused by?
Answer: Chlorofluorocarbon (CFC)
102181. Industrial name of CFC?
Answer: Freon
102182. Sodium is kept in?
Answer: Kerosene
102183. Sodium was discovered by?
Answer: Humphry Davy
102184. The element which regulates blood pressure in human beings?
Answer: Sodium
102185. Cell used to manufacture sodium hydroxide (NaOH)?
Answer: Castner Kellner Cell
102186. Compound used as air purifier cell in submarines?
Answer: Sodium peroxide
102187. ജില്ലയുടെ പേര് സ്ഥലപ്പേരല്ലാത് ത കേരളത്തിലെ ജില്ല : [Jillayude peru sthalapperallaathu tha keralatthile jilla :]
Answer: വയനാട് [Vayanaadu]
102188. Compound which is used as a fixer in photographic film?
Answer: Sodium Thio sulphate or Thio
102189. The compound used in blood bank?
Answer: Sodium citrate
102190. The sodium compound used as coolant in atomic reactors?
Answer: Liquid sodium
102191. ധര്മടം ദ്വീപ് ഏത് പുഴയില് സ്ഥിതിചെയ്യുന്നു ? [Dharmadam dveepu ethu puzhayilu sthithicheyyunnu ?]
Answer: അഞ്ചരക്കണ്ടിപ്പുഴയില് [Ancharakkandippuzhayilu]
102192. Sodium and Potassium are known as?
Answer: Soft metals
102193. They are highly reactive with?
Answer: Water
102194. Sodium and Potassium are kept in?
Answer: Kerosene
102195. Element known as 'chemical sun' is?
Answer: Magnesium
102196. The metal present in chloroplast of plants?
Answer: Magnesium
102197. The Magnesium compound used for dental filling?
Answer: Sorel cement
102198. Magnesium Hydroxide; acts as an antacid is popularly known as?
Answer: Milk of Magnesia
102199. The most abundant metal in the earth's crust?
Answer: Aluminium
102200. Which is the main ore of Aluminium is?
Answer: Bauxite
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