問題詳情
5. 下列有關鹼金屬及其化合物的敘述，何者正確？
(A)鹼金屬可溶於水，並釋出氧氣
(B)鹼金屬在水中使溶液呈鹼性，並釋出氫氣
(C)氧化物在水中溶液呈酸性，並釋出氧氣
(D)氫氧化合物在水中使溶液呈鹼性，並釋出氫氣。
(A)鹼金屬可溶於水，並釋出氧氣
(B)鹼金屬在水中使溶液呈鹼性，並釋出氫氣
(C)氧化物在水中溶液呈酸性，並釋出氧氣
(D)氫氧化合物在水中使溶液呈鹼性，並釋出氫氣。
參考答案
答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(1),E(0)
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