GCI Trivia - July 12, 2016

Welcome to GCI Trivia! Please answer the following questions. For each question answered correctly, you will be entered into our monthly prize draw! Good luck!!

Occupational Exposure Limits (OELs) restrict the amount and length of time a worker is exposed to airborne concentrations of hazardous biological or chemical agents and are reported in parts per million (ppm). Rank the following solvents in order of decreasing exposure limit (according to a 2009 Workplace Health and Saftey Bulletin published by the Government of Alberta). HINT: higher exposure limits indicate a less hazardous solvent

A) diethyl ether > acetone > chloroform > hexane > benzene

B) acetone > diethyl ether > chloroform > benzene > hexane

C) acetone > diethyl ether > hexane > chloroform > benzene

D) acetone > chloroform > diethyl ether > hexane > benzene

Lignin, a typical waste product from the pulp and paper industry, makes up on average how much by weight of a plant’s mass?

A) 20-25%

B) 40-45%

C) 60-65%

D) >80%

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