One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 469
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Multiple-choice question: The explosive capacity of acetylene is reduced when it is diluted with certain gases, such as N2 (at a 1:1 ratio), CH4 (methane), CO2, CO, H2O (water vapor), etc. The best gas for this purpose is ( ). A. N2 B. CO2 C. H2O Answer: A. N2
The explosive power of acetylene is reduced when it is diluted with certain gases, such as N2 (at a 1:1 ratio), CH4 (methane), CO2, CO, H2O (water vapor), etc. The best gas for this purpose is (A) A. N2 B. CO2 C. H2O