問題詳情
4. 在下列化學反應中，哪一個化合物是氧化劑?6KNO3 + 5S + 2CaCO3 →3K2SO4 + 2CaSO4 + 2CO2 + 3N2
(A) KNO3
(B) S
(C) CaCO3
(D) CaSO4
(E) N2
(A) KNO3
(B) S
(C) CaCO3
(D) CaSO4
(E) N2
參考答案
答案：A
難度：適中0.678571
統計：A(19),B(1),C(3),D(0),E(4)
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