問題詳情
1. 由 X 與 Y 兩種元素組成的化合物，若化合物中 X 與 Y 的質量比是 3:1，而 X 與 Y 的相對原子量比是 12:1，則下列何者是該化合物的化學式？
(A)XY4
(B)XY3
(C)XY2
(D)XY2
(E)X3Y
(A)XY4
(B)XY3
(C)XY2
(D)XY2
(E)X3Y
參考答案
答案：A
難度：簡單0.787234
統計：A(37),B(5),C(1),D(0),E(2)
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