Chemistry-Objective Related Question Answers
176. Who Classified Elements based on atomic number?
Moseley
177. Element present in 1; 2 and 13-18 groups are known as;?
Representative elements
178. All transitive elements are?
Metals
179. Transitive elements form…?
Coloured compounds
180. Which element is having the name of earth?
Tellurium (52)
181. Which element is having the name of moon?
Selenium (34)
182. Which element is having the name of Sun?
Helium (2)
183. Which element is having the name of Asteroid?
Palladium (46)
184. Which elements were named to honour women?
Curium (96) & Meitnerium (109)
185. Which element is having the name of Ceres?
Cerium(58)
186. Which element is having the Name of Uranus?
Uranium (92)
187. Which element is having the Name of Neptune?
Neptunium (93)
188. Which element is having the Name of Pluto?
Plutonium (94)
189. The ability of an atom to accept the electrons during molecular bond formulation is known as?
Electro negativity
190. Electro negativity was discovered by?
Linus Pauling
191. Electro negativity scale was invented by?
Linus Pauling
192. The element which has most electro negativity?
Fluorine
193. The elements which have least electro negativity?
Francium; Caesium
194. Two types of reactions are?
Physical and Chemicalreactions
195. A reaction in which no new substance is produced is called .?
Physical reaction
196. The process by which one or more substances get transformed into a new substance is called?
Chemical reaction
197. Chemical reaction in which heat is released?
Exothermic reaction
198. Chemical reaction in which heat is absorbed?
Endothermic reaction
199. Chemical reaction that involves the loss of electrons?
Oxidation
200. Chemical reaction that involves the gain of electrons?
Reduction
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