在100mL密度为1.2g/mL稀硝酸中，加入一定量的镁和铜组成的混合物，充分反应后金属完全溶解（假设还原产物只有NO），向反应后溶液中加入3mol/L NaOH溶液至沉淀完全，测得生成沉淀质量比原金属质量增加5.1g。则下列叙述不正确是
| A．当金属全部溶解时收集到NO气体的体积为2.24L（标准状况） |
| B．当生成沉淀的量最多时，消耗NaOH溶液体积最小为100mL |
| C．原稀硝酸的物质的量浓度一定为4 mol/L |
| D．参加反应金属总质量（m）为9.6g＞m＞3.6g |
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