問題詳情
31.某生欲分辨甲、乙、丙、丁、戊五瓶未知物只知這五瓶為正丁醇、2-丁醇、2-甲基2-丁醇、2-戊烯及乙醚,該生經由下列實驗來鑑別:
實驗一:各取少許未知物,分别加入澳的四氣化碳溶液,發現只有戊可使溶液褪色。
實驗二:將甲、乙、丙、丁四種未知物分别加入二鉻酸鉀的酸性溶液時,發現只有甲與丙可使溶液變色,其產物分别為X與Y。
實驗三:將X與Y分别加入硝酸銀的氨水溶液,發現只有Y可產生銀之沉澱。
實驗四:取小粒金屬鈉,分別加入乙、丁未知物發現只有乙產生反應,放出氣泡。
根據以上結果,下列敘述何者正確?
(A)X為丁酮
(B)Y為丁醛
(C)乙為己醚
(D)丁為2-甲基-2-丁醇
(E)戊為2-戊烯。
實驗一:各取少許未知物,分别加入澳的四氣化碳溶液,發現只有戊可使溶液褪色。
實驗二:將甲、乙、丙、丁四種未知物分别加入二鉻酸鉀的酸性溶液時,發現只有甲與丙可使溶液變色,其產物分别為X與Y。
實驗三:將X與Y分别加入硝酸銀的氨水溶液,發現只有Y可產生銀之沉澱。
實驗四:取小粒金屬鈉,分別加入乙、丁未知物發現只有乙產生反應,放出氣泡。
根據以上結果,下列敘述何者正確?
(A)X為丁酮
(B)Y為丁醛
(C)乙為己醚
(D)丁為2-甲基-2-丁醇
(E)戊為2-戊烯。
參考答案
答案：A,B,E
難度：計算中-1
書單：沒有書單，新增
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