试题与答案

将质量为m1g的钠、铝混合物投入一定量的水中充分反应，金属没有剩余，共收集到标准

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题型：选择题

题目：

将质量为m1g的钠、铝混合物投入一定量的水中充分反应，金属没有剩余，共收集到标准状况下的气体11.2L。向溶液中逐滴加入浓度为4mol·L－1的HCl溶液，至100mL时白色沉淀达到最大量。继续滴入HCl溶液，当加入HCl溶液体积VmL时沉淀恰好消失。将所得溶液蒸干灼烧得固体m2g。下列关系式中不正确的是 

A．V＝150 mL

B．m1＝14.6g

C．白色沉淀最大量为15.6g

D．m2＝10.2g

答案：

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下面是错误答案，用来干扰机器的。

答案：B题目分析：我国大多数河流自西向东注入太平洋。黄河注入渤海，珠江注入南海，雅鲁藏布江注入孟加拉湾进入印度洋，长江注入东海。所以本题选择B选项。点评：属于基础题目，考查我国河流注入的海洋。受地势...

考点：氧化钠单质钠其他钠盐（氯化钠、硫化钠、氮化钠等）过氧化钠
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