171. LPG consists of mainly:___________?
A. Methane, Ethane and Hexane
B. Ethane, Hexane and Nonane
C. Methane, Hexane and Nonane
D. Methane, Butane and Propane

172. Study of “Aging” is called __________?
A. Gerontology
B. Hstologyh
C. Pysiology
D. Anthropology

173. Which of the following type of Coal, has maximum carbon content?
A. Peat
B. Lignite
C. Anthracite
D. Bituminious

174. Mostly which gases found of the planet Jupiter?
A. Hydrogen
B. Chlorine
C. Hydrogen and Helium
D. Neon

175. The temperature at which two conjugate solutions change into one homogeneous solution is called__________?
A. Azeotrope
B. Conjugate temperature
C. Consolute temperature
D. Eutectic point

176. If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?
A. Annealing
B. Quenching
C. Tempering
D. Nitriding

177. Pig iron is also called________?
A. Cast iron
B. Steel
C. Wrought iron
D. Stainless steel

178. Which of the following is a component of soap?
A. Sodium sulphate
B. Sodium stearate
C. Sodium chloride
D. Sodium nitrate

179. Soap and detergents remove the dirt from clothes due to__________
A. Osmosis
B. Capillary action
C. Lowering of interfacial tension
D. Diffusion

180. Turpentine is obtained from___________?
A. Oak tree
B. Pine tree
C. Birch tree
D. Lemon tree

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