【Daily Question】November 27, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers
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This post was last edited by zjp on 2015-11-30 07:30. 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 substance that can be used to standardize both NaOH solution and KMnO4 is ( ). A H2C2O4·2H2O B Na2C2O4 C HCl D H2SO4\Standard answer: A. Reply with your answer in the comments; 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. Wealth, equal, answer, best
The substance that can be used both for calibrating NaOH solutions and for calibrating KMnO4 is (A). A H2C2O4·2H2O B Na2C2O4 C HCl D H2SO4\
A..........................................
Answer: It should be A, as it is both acidic and can react with oxidizing agents
The substance that can be used to calibrate NaOH solutions as well as to calibrate KMnO4 is (a). A H2C2O4·2H2O B Na2C2O4 C HCl D H2SO4\
The substance that can be used both for calibrating NaOH solutions and for calibrating KMnO4 is (A). A H2C2O4·2H2O B Na2C2O4 C HCl D H2SO4\
The substance that can be used both for calibrating NaOH solutions and for calibrating KMnO4 is (B).
The substance that can be used both for calibrating NaOH solutions and for calibrating KMnO4 is (A). A H2C2O4·2H2O B Na2C2O4 C HCl D H2SO4\