Chemical Process Hydrogenation of oil does not None of these Remove double bonds Improve its resistance to oxidation Raise its melting point None of these Remove double bonds Improve its resistance to oxidation Raise its melting point ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Lime and soda ash are added to water to remove Its corrosiveness Undersirable taste and odour Bicarbonates & sulphates of calcium and magnesium Bacteria Its corrosiveness Undersirable taste and odour Bicarbonates & sulphates of calcium and magnesium Bacteria ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The yield of tar from high temperature carbonisation of dry coal is about __________ percent. 3 0.3 12 22 3 0.3 12 22 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is an ore concentrating metallurgical process involving a chemical change. Roasting None of these Froth floatation Electromagnetic separation Roasting None of these Froth floatation Electromagnetic separation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Permanent hardness of water can be removed by Passing it through cation & anion exchangers Adding alum Simply boiling All of these Passing it through cation & anion exchangers Adding alum Simply boiling All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is used as a coagulant in water treatment? Chloramine Hydrogen peroxide Chlorine Ferrous sulphate Chloramine Hydrogen peroxide Chlorine Ferrous sulphate ANSWER DOWNLOAD EXAMIANS APP
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