Chemistry-Objective Related Question Answers
201. Chemical reaction in which electric energy is either absorbed or released?
Electro chemical reaction
202. Chemical reaction in which light energy is either absorbed or released?
Photochemical reaction
203. The ability of an atom to donate electrons is called?
Electro positivity
204. Union of atoms of two or more elements by mutual attraction?
Chemical Bonding
205. Two types of Bonds are :?
Ionic Bond or Electro Valent Bond & (ii) Covalent bond
206. The bond formed by transferring electrons from an atom to another?
Ionic Bond
207. Ionic bond was proposed by?
Kossel
208. The bonds formed by sharing of electrons between the atoms is called?
Covalent bond
209. Which is the strongest bond?
Covalent bond
210. Which is the weakest bond?
Vander Waals Bond
211. The study of metals and the overall process by which metals are extracted from its ores are called?
Metallurgy
212. The elements which lose electrons in chemical reaction are called?
Metals
213. First metal discovered by man?
Copper
214. The hardest metal?
Chromium
215. Malleability of metals means?
Flattened into thin sheets by hammering
216. Ductility of metals means?
Stretched into a wire under pressure
217. Tensile of metals means?
Capable of being drawn out or stretched
218. Sonority of metals means?
The quality of being resonant
219. The metal having highest density?
Osmium
220. The metal known as Rainbow metal?
Iridium
221. The strongest reducing agent?
Lithium
222. The metal kept in wax?
Lithium
223. The metal which does not allow X-ray to pass through?
Lead
224. The metal having lowest melting point?
Mercury
225. The metal known as quick silver?
Mercury
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