化学家庭小实验是利用家庭日常生活用品进行化学学习和研究的活动

化学家庭小实验是利用家庭日常生活用品进行化学学习和研究的活动,利用日常生活用品,下列实验设计不能完成的是

A.用粥汤检验碘盐中是否含有KIO3

B.用醋酸除去热水瓶中的水垢

C.用食用碱(Na2CO3)溶液洗涤餐具上的油污

D.淀粉溶液具有丁达尔现象

答案

A

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