题目

等物质的量的下列物质分别与足量的NaOH溶液完全反应，消耗的量最多的是(    ) A.NaHSO4                                B.AlCl3C.SiO2                                      答案：B解析：分别假设四个选项中的物质分别为1 mol,A是完全电离出1 mol H+，消耗1 mol NaOH；B项Al3+转变为，消耗4 mol NaOH；C项SiO2转变为，消耗2 mol NaOH；D项发生水解反应和酚羟基和碱的中和反应，消耗3 mol NaOH。 I must go now. _____, if you want that book I'll bring it next time.    A. Incidentally             B. Accidentally        C. Occasionally    D. Subsequently