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3. 某碳氫化合物完全燃燒所得 CO2與 H2O 之 mol 數比為 1:1,則此物為? (A)CH4 (B)C2H2 (C)C2H4 (D)C3H8。
問題詳情
3. 某碳氫化合物完全燃燒所得 CO2與 H2O 之 mol 數比為 1:1,則此物為?
(A)CH4
(B)C2H2
(C)C2H4
(D)C3H8。
參考答案
答案:C[無官方正解]
難度:適中0.5
統計:A(1),B(0),C(1),D(0),E(0)
用户評論
【
olivine
】評論
CO2與H2O之mol數為1:1,則C與H的個數比為1:2,故其實驗式為CH2可知其分子式為(CH2)n,則此物為C2H4
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