试题与答案

重介分选中表征粘滞阻力的特征是()。 A.密度 B.粘度 C.粒度 D.磨擦力

题型:单项选择题

题目:

重介分选中表征粘滞阻力的特征是()。

A.密度

B.粘度

C.粒度

D.磨擦力

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D解析:A项,过量的铁粉中加入稀HNO3,充分反应后生成Fe2+,滴入KSCN溶液不会显红色,所以A错误;B项,AgI沉淀比AgCl更难溶,所以B项错误;C项,Al箔插入稀HNO3+中不会发生钝化,铝会渐渐溶解,所以C项...

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