Chemical Process Function of sodium thiosulphate (hypo) in development of photographic film/plate is to Brighten the faint images Remove unexposed silver halide Convert silver chloride to silver Remove metallic silver Brighten the faint images Remove unexposed silver halide Convert silver chloride to silver Remove metallic silver ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the true statement pertaining to water treatment. Slow sand filters can remove colour completely Normally, the turbidity is removed by adding a coagulent prior to sedimentation Activated carbon can be used for taste & odour control without subsequent filtration Application of activated carbon reduces the temporary hardness of water Slow sand filters can remove colour completely Normally, the turbidity is removed by adding a coagulent prior to sedimentation Activated carbon can be used for taste & odour control without subsequent filtration Application of activated carbon reduces the temporary hardness of water ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The function of gypsum addition during cement making is to Both A and B Neither A nor B Decrease the cement setting rate Increase the density of cement Both A and B Neither A nor B Decrease the cement setting rate Increase the density of cement ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Blue vitriol is chemically Copper sulphate Aluminium sulphate Copper nitrate Ferrous sulphate Copper sulphate Aluminium sulphate Copper nitrate Ferrous sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to Increase the variation in its viscosity with temperature Reduce the variation in its viscosity with temperature Increase its viscosity Reduce its viscosity Increase the variation in its viscosity with temperature Reduce the variation in its viscosity with temperature Increase its viscosity Reduce its viscosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Viscose rayon Cannot be made from sulphite pulp Cannot yield textile grade fibre Utilises H₂SO₄, NaOH and CS₂ during its manufacture None of these Cannot be made from sulphite pulp Cannot yield textile grade fibre Utilises H₂SO₄, NaOH and CS₂ during its manufacture None of these ANSWER DOWNLOAD EXAMIANS APP
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