【Daily Question】Dec 4, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers

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This post was last edited by zjp on 2015-12-7 07:10. 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) Among the quality requirements for water used, the parameter that does not need to be tested is ( ). A: Cation B: Density C: Conductivity D: pH Correct answer: B. Post your answer in the replies; participating in the quiz earns you +2 wealth points. Getting all answers correct grants an additional +3 to +8 wealth points. Those who provide thorough analyses and explanations for the questions or answers (or include detailed calculation processes) will receive extra wealth points as a reward. 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.