Environmental Engineering in CE
The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.

Remains constant
Decreases
May increase or decrease ; depends on the chemical characteristics of polluted water
Increases

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Environmental Engineering in CE
Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for

Oxidation of unburnt hydrocarbon fuel in the second compartment
Conversion of NOx into N₂ and NH₃ in the first compartment
Conversion of CO into CO₂ in the second compartment
All of these

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