Chemical Process A mineral is termed as 'ore', if It contains ≥ 40% metal A metal can be economically extracted from it The metal present in it is costly All of these It contains ≥ 40% metal A metal can be economically extracted from it The metal present in it is costly All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chloramines are used in water treatment for Removing turbidity Control of bacteria Corrosion control Disinfection and control of taste & odour Removing turbidity Control of bacteria Corrosion control Disinfection and control of taste & odour ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Deaeration of water in its treatment is necessary, as it Minimises its turbidity Helps in controlling its taste and odour Minimises its corrosiveness None of these Minimises its turbidity Helps in controlling its taste and odour Minimises its corrosiveness None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Wet chlorine gas produced during electrolysis of brine is dehydrated by None of these Passing it through a bed of silica gel Spraying 66° Be H₂SO₄ counter current to the flow of the gas Passing it through a bed of diatomaceous earth None of these Passing it through a bed of silica gel Spraying 66° Be H₂SO₄ counter current to the flow of the gas Passing it through a bed of diatomaceous earth ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Magnesium and calcium __________ cause temporary hardness of water. Bicarbonates Phosphates Sulphates Carbonates Bicarbonates Phosphates Sulphates Carbonates ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Fat dispersed in water is exemplified by Emulsion Butter Colloids Gel Emulsion Butter Colloids Gel ANSWER DOWNLOAD EXAMIANS APP
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