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 Very fine suspended and colloidal impurities are removed from water by a process called Softening Coagulation Sedimentation Disinfection Softening Coagulation Sedimentation Disinfection ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Bromine content in sea water may be around __________ ppm. 1875 70 2500 640 1875 70 2500 640 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process A mineral is termed as 'ore', if The metal present in it is costly It contains ≥ 40% metal All of these A metal can be economically extracted from it The metal present in it is costly It contains ≥ 40% metal All of these A metal can be economically extracted from it ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the exothermic reaction out of the following: MgCO₃ = MgO + CO₂ C + H₂O = CO + H₂ CaC₂ + H₂O = Ca(OH)₂ + C₂H₂ All of these MgCO₃ = MgO + CO₂ C + H₂O = CO + H₂ CaC₂ + H₂O = Ca(OH)₂ + C₂H₂ All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Thermosetting plastic materials Can not be melted after forming Can be repeatedly melted Is useful for spinning Is useful for melt casting Can not be melted after forming Can be repeatedly melted Is useful for spinning Is useful for melt casting ANSWER DOWNLOAD EXAMIANS APP
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