One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 267
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This post was last edited by YongBu※YanQi on 2015-8-1 at 21:41. True or False: Mixing a certain proportion of nitrogen gas into acetylene can reduce its risk of explosion. （ ） Answer: Correct
Mixing a certain proportion of nitrogen into acetylene gas can increase its explosion risk. (X) Alkynes are not fast
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Mixing a certain proportion of nitrogen into ethylene gas can reduce its explosion risk. （ Error ）
This post was last edited by zhenming178 on 2015-8-2 07:55. Mixing a certain proportion of nitrogen into ethylene gas can reduce its explosion risk. (√)
Mixing a certain proportion of nitrogen into ethylene gas can reduce its explosion risk. ( Correct ) )
Mixing a certain proportion of nitrogen into ethylene gas can reduce its explosion risk. （ ） is correct
Error! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
True or False: Mixing a certain proportion of nitrogen into acetylene can reduce its explosion risk. （ ）Wrong