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chemical engineering petroleum refinery engineering
1. Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.
(A): 1
(B): 10000
(C): 50
(D): 5000
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MCQ->Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.....
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MCQ->Ethyl mercaptan is a/an __________ compound.....
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