【Daily Question】Chemical Analysis Edition, 2020.2.15

2020-02-15View Original

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This post was last edited by zjp on 2020-2-15 08:07. Multiple-choice question: Excess hydrochloric acid is used in the diazotization method for the determination of sulfonamide drugs. Which of the following statements is incorrect? （） A. It can prevent the occurrence of side reactions. B. It increases the stability of diazonium salts. C. It accelerates the diazotization reaction. D. It facilitates the use of KI-starch test strips to determine the endpoint. D

Reply #22020-02-15

D. Facilitates the endpoint indication by KI-starch test strips

Reply #32020-02-15

D. Facilitates the endpoint indication by KI-starch test strips

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【Daily Question】Chemical Analysis Edition, 2020.2.15

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