下列关于乙酸的叙述正确的是       A. 乙酸酸性较弱,不能使紫

下列关于乙酸的叙述正确的是

       A. 乙酸酸性较弱,不能使紫色石蕊变红

       B.乙酸分子中既有极性键,又有非极性键

       C.乙酸在常温下能与NaOHNa2CO3、乙醇等发生化学反应

       D.等体积等浓度的盐酸和乙酸中加入足量的锌粒,乙酸产生的氢气质量大

答案

B

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