下列实验操作和数据记录都正确的是 A.用25 mL碱式滴定管量取高锰

下列实验操作和数据记录都正确的是

A.用25 mL碱式滴定管量取高锰酸钾溶液,体积为16.60 mL

B.用标准NaOH溶液滴定未知浓度盐酸,用去NaOH溶液20.50mL

C.用10 mL量筒量取8.25 mL盐酸

D.用pH试纸测得某溶液pH3.2

答案

【答案】B

【解析】

试题分析:A、用酸式滴定管量取高锰酸钾溶液,A错误;B、滴定管读数到0.01mLB正确;C、量筒只能读数到0.1mLC错误;DpH试纸只能读数到整数,D错误,答案选B

考点:考查化学实验读数判断

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