【Daily Question】January 8, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers

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This post was last edited by zjp on 2016-1-10 08:26. To increase the popularity of the chemical analysis section, a \"One Question per Day\" campaign has been launched; this aims to foster active technical exchanges while also providing financial rewards to users. 【Daily Question】 (Single-choice question) The minimum requirement for the water used to prepare standard solutions is ( ). A: Grade 1 water B: Grade 2 water C: Grade 3 water D: Grade 4 water. Correct answer: C. Reply with your answer in the comments; you will receive +2 wealth points for participating in the quiz. An additional +3 to +8 wealth points will be given if you answer all questions correctly. Extra wealth points will also be awarded if you provide a thorough analysis and explanation of the questions or answers, including 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. Note: We will close this post after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation.