【Daily Question】Sulfur Technical Version 20170817

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To increase the popularity of this section, a daily quiz activity has been launched. The purpose of this activity is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, they can also easily bring wealth home :) . Participation: Prize of 5 Wealth ； Correct answer: Reward of 10 wealth points ； Note: Questions from the same day will receive full feedback if answered on the same day; answers given the next day will earn 5-8 wealth points. This post is valid for 52 hours. Multiple-choice question: Which method is used to analyze hydrogen sulfide and sulfur dioxide in sampled gases? (　　) A. Oszillometric method B. Chromatography C. Test tube method D. Absorption method Answer: B Note: The answer will be announced automatically in two days. Registered Chemical Engineer – Experience Sharing under the “Learning from Others” initiative: http://bbs.hcbbs.com/thread-1808158-1-1.html. “My Technical Upgrades in Coal Chemistry” in 2017: http://bbs.hcbbs.com/thread-1786290-1-1.html. [Daily Question] Summary post for the Sulfur Technology section in 2017: http://bbs.hcbbs.com/thread-1811578-1-1.html