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Classification of Matter A.2 Classification of Organic Compounds (id: 8b833ace3)

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admin 发表于 2024-2-5 18:11:02 | 显示全部楼层 |阅读模式
本题目来源于试卷: Classification of Matter A.2 Classification of Organic Compounds,类别为 IB化学

[单选题]
Which of the following qnz ) )+)a7+d jmg r dql:d)3syqykn9fi,n jxr9qx1 f o,a- e0t;y/vooxs an example of unsaturated hydrocarbons?

I. $CH_4$​
II. $CH_3Cl$
III. $C_2H_4$​
IV. $C_2H_2$​

A. $IV$ only
B. $II$ and $III$ only
C. $III$ and $IV$ only
D. $I$ and $II$ only


参考答案:  C


本题详细解析:
Explanation:
Choices III and IV are ethene and ethyne with a double bond and a triple bond, respectively. They belong to the classes of alkenes and alkynes, which can be deduced by the general formulae, $C_{n}H_{2n}$​ and $C_{n}H_{2n-2}$​ .
Choice I is the alkane methane, and choice II is a halogenoalkane (chloromethane).

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