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Models of Bonding & Structure B.2 The Covalent Model (id: 21872bbd9)

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admin 发表于 2024-2-13 10:15:07 | 显示全部楼层 |阅读模式
本题目来源于试卷: Models of Bonding & Structure B.2 The Covalent Model,类别为 IB化学

[单选题]
Which is a correct description of the bonding present in the following allotropes of carbon?

A. Graphene is 3-dimensional material with bond angles of $109.5^{\circ}$;Diamond is 2-dimensional material with bond angles of $120^{\circ}$;Graphite isHexagonal layers with bond angles of $120^{\circ}$
B. Graphene is Hexagonal layers with bond angles of $120{\circ}$;Diamond is 3-dimensional material with bond angles of $109.5^{\circ}$;Graphite is 2-dimensional material with bond angles of $120^{\circ}$
C. Graphene is 2-dimensional material with bond angles of $120^{\circ}$;Diamond is 3-dimensional material with bond angles of $109.5^{\circ}$;Graphite is Hexagonal layers with bond angles of $120{\circ}$
D. Graphene is 2-dimensional material with bond angles of $120^{\circ}$;Diamond is Hexagonal layers with bond angles of $120^{\circ}$;Graphite is 3-dimensional material with bond angles of $109.5^{\circ}$


参考答案:  C


本题详细解析:
Graphite is made up of individual graphene layers. Both have carbon atoms with three electron domains and trigonal planar shapes. Each carbon atom in diamond has four electron domains resulting in tetrahedral arrangements.

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