下面实验操作可以实现实验目的是 A. 鸡蛋白溶液中,加入浓的硫

 下面实验操作可以实现实验目的是

A. 鸡蛋白溶液中,加入浓的硫酸铵溶液有沉淀析出,加入水后沉淀不溶解

B. 将SO2通入酸性KMnO4溶液中,溶液褪色,证明SO2具有漂白性

C. 取样灼烧,可以鉴别某白色纺织品是棉织品还是羊毛制品

D. 取少量蔗糖溶液加稀硫酸,水浴加热几分钟后,再加入新制的氢氧化铜悬浊液,并且加热,观察现象,判断蔗糖水解的产物中是否含有葡萄糖

答案

B

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