Chemical Engineering Mcqs

‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the____________________?

(A) Industrial chimney exhaust

(B) Automobiles exhaust

(C) Photochemical reaction in polluted atmosphere

(D) Burning of domestic fuel

Submitted By: Ali Uppal

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