×
多选题
标定盐酸可用以下基准物质：( )
A
A、邻苯二甲酸氢钾
B
B、硼砂
C
C、无水碳酸钠
D
D、草酸钠
答案解析
正确答案：BC
解析：
标定盐酸可用以下基准物质：
Answer: BC
Analysis: This question is about identifying the standard substances that can be used for the calibration of hydrochloric acid (HCl). The correct answers are B and C.
B: Borax (Na2B4O7•10H2O) is a common standard substance used for acid-base titrations, including the calibration of hydrochloric acid.
C: Anhydrous sodium carbonate (Na2CO3) is also a standard substance used for acid-base titrations.
