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

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

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in

Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate
All of these
Coagulation and flocculation of colloids
Oxidation of carbonaceous matter to CO₂

ANSWER DOWNLOAD EXAMIANS APP