Chemical Process Magnesium and calcium __________ cause temporary hardness of water. Phosphates Carbonates Bicarbonates Sulphates Phosphates Carbonates Bicarbonates Sulphates ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Temporary hardness of water can be removed by Boiling Filtration (through gravity sand filter) Addition of lime Addition of alum (a coagulant) Boiling Filtration (through gravity sand filter) Addition of lime Addition of alum (a coagulant) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Most widely and commonly used coagulant for the removal of suspended impurities in water is Copper sulphate Slaked lime Alum Bleaching powder Copper sulphate Slaked lime Alum Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Frasch process is for Making nitrogen Producing helium Making oxygen Mining sulphur Making nitrogen Producing helium Making oxygen Mining sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Na₂CO₃.10H₂O is called Slaked lime Washing soda Soda ash Quicklime Slaked lime Washing soda Soda ash Quicklime ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Vulcanisation of rubber Increases its oil & solvent resistance Decreases its tensile strength Converts its plasticity into elasticity Increases its ozone & oxygen reactivity Increases its oil & solvent resistance Decreases its tensile strength Converts its plasticity into elasticity Increases its ozone & oxygen reactivity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS