Page 388 - General Knowledge

GENERAL KNOWLEDGE 2019

181. Which among the following is major component of Gobar Gas?
A. Butane
B. Ethane
C. Propane
D. Metahne

182. Which among the following is a common salt in Detergents?
A. Sulphate
B. Nitrate
C. Sulphonate
D. Carbonate

183. 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

184. 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

185. Lightest and most abundant chemical element, constituting roughly 75 % of the Universe‘s
elemental mass.
A. Carbon
B. Aluminium
C. Bauxite
D. Hydrogen

186. 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

187. The easily noticed smell of the LPG gas is because of which among the following?
A. Butane
B. Propane
C. Methane
D. Ethanethiol

188. Which compound of mercury is used as antiseptic?
A. Mercuric sulphide
B. Mercuric oxide
C. Mercuric chloride
D. Mercuric iodide

189. Speed of sound is maximum in which among the following?
A. Solids

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