Chemical Process Presence of carbonaceous matter in the sewage Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures All of these Increases the quantity of chlorine used for its purification Reduces sulphate ions to sulphides causing obnoxious smell Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures All of these Increases the quantity of chlorine used for its purification Reduces sulphate ions to sulphides causing obnoxious smell ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Refractory bricks burnt at very high temperature have got None of these Greater resistance to corrosion by slags Less resistance to corrosion by slags High spalling tendency None of these Greater resistance to corrosion by slags Less resistance to corrosion by slags High spalling tendency ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Polymerisation product of C₂F4 (carbon tetraflouride) is called P.T.F.E (poly chloro tetra flouro ethylene). It is also called Epoxy resin Teflon Silicone Polyurethane Epoxy resin Teflon Silicone Polyurethane ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Zeolite used in water softening process (cation exchange) is regenerated by washing with Liquid chlorines Chloramines Brine Sodium bisulphite Liquid chlorines Chloramines Brine Sodium bisulphite ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Commercial production of calcium carbide requires limestone and __________ as raw materials. Soda ash Coke Fuel oil Sand Soda ash Coke Fuel oil Sand ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The yield of tar from high temperature carbonisation of dry coal is about __________ percent. 22 12 0.3 3 22 12 0.3 3 ANSWER DOWNLOAD EXAMIANS APP
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