Environmental Engineering in CE
Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes

Corrosion, tarnishing & soiling of metals
Fading of dyes on textiles
All of these
Reduced strength of textiles

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

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

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