【Daily Question】February 25, 2016: Participation = +2 wealth； +3 to 8 wealth for correct answers
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This post was last edited by zjp on 2016-2-26 at 14:13. 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 catalyst commonly used in the nitrification of nitrogen according to the Kjeldahl method is ( ). A CuSO4 B CuSO4+ selenium powder C Selenium powder D K2SO4+ CuSO4. The correct answer is D. Reply with your answer in the comments; participating in the quiz earns you +2 wealth points. Those who get all answers correct receive 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/explanation is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions.
B CuSO4 + selenium powder
D K2SO4+ CuSO4
D K2SO4+ CuSO4
The commonly used catalyst in the legal nitrogen nitration process of Kedar is (A). A CuSO4 B CuSO4+selephant dust C selenium dust D K2SO4+ CuSO4
The commonly used catalyst in the legal nitrogen nitration process of Kedar is (B). A CuSO4 B CuSO4+selephant dust C selenium dust D K2SO4+ CuSO4
The commonly used catalyst in the legal nitrogen nitration process of Kedar is (D). A CuSO4 B CuSO4+selephant dust C selenium dust D K2SO4+ CuSO4