【Weekly Question】June 26, 2017 – July 1: Participate for +2 wealth； +3 to +10 wealth for correct answers
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To increase the popularity of the chemical analysis section, a \"Question of the Week\" campaign has been launched to foster an active atmosphere for technical exchanges while offering rewards in the form of financial benefits to users. 【Weekly Question】Multiple-choice question: When washing the glassware used for measuring sulfur dioxide in exhaust gases, which detergent should not be used? ( ) A. Chromic acid wash solution ； B、Sodium hydroxide solution ； C. Alcohol ； D. Hydrochloric acid solution. Q&A: A Please reply with your answer in the comments; participating in the quiz earns you +2 wealth points. If you answer all questions correctly, you’ll receive an additional +3 to +8 wealth points. Extra rewards will be given if you provide a thorough analysis and explanation of the questions or answers (or include detailed calculation processes). If your answer is correct and your analysis is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions.
The detergent that cannot be used for washing the glassware used in measuring sulfur dioxide in exhaust gases is (A). A. Chromic acid solution； B、Sodium hydroxide solution ； C. Alcohol ； D. Hydrochloric acid wash.