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Ch.9 - Molecular Geometry and Bonding Theories
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 14th EditionCh.9 - Molecular Geometry and Bonding Theories문제 8b
9장, 문제 8b

The drawing below shows the overlap of two hybrid orbitals to form a bond in a hydrocarbon. (b) Which of the following could be the identity of the hydrocarbon: (i) CH4, (ii) C2H6, (iii) C2H4, or (iv) C2H2?
Diagram showing the overlap of two hybrid orbitals forming a bond in a hydrocarbon.

검증된 단계별 안내
1
Identify the type of hybrid orbitals shown in the diagram. The diagram shows the overlap of two sp hybrid orbitals.
Recall the types of bonds formed by different hybridizations: sp hybridization forms a triple bond or a single bond with two lone pairs, sp2 hybridization forms a double bond, and sp3 hybridization forms a single bond.
Determine the type of hydrocarbon that can have sp hybridization. Hydrocarbons with sp hybridization include those with triple bonds, such as acetylene (C2H2).
Analyze the given options: (i) CH4 (sp3 hybridization), (ii) C2H6 (sp3 hybridization), (iii) C2H4 (sp2 hybridization), and (iv) C2H2 (sp hybridization).
Conclude that the hydrocarbon with sp hybridization, which matches the diagram, is C2H2.

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1m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Hybridization

Hybridization is the process of combining atomic orbitals to form new hybrid orbitals that can accommodate bonding. In hydrocarbons, carbon typically undergoes sp3, sp2, or sp hybridization, depending on the number of bonds it forms. This concept is crucial for understanding the geometry and bonding characteristics of molecules.
추천 영상:
가이드 코스
00:51
Hybridization

Types of Hydrocarbons

Hydrocarbons are organic compounds consisting solely of carbon and hydrogen. They can be classified into alkanes (single bonds), alkenes (at least one double bond), and alkynes (at least one triple bond). Identifying the type of hydrocarbon is essential for determining its structure and reactivity, which is relevant to the question.
추천 영상:
가이드 코스
04:29
Intro To Hydrocarbons

Bond Formation

Bond formation occurs when atomic orbitals overlap to create a stable connection between atoms. The image depicts the overlap of hybrid orbitals, indicating the formation of a sigma bond. Understanding how bonds form helps in predicting the molecular structure and properties of the hydrocarbon in question.
추천 영상:
가이드 코스
01:41
Amide Formation
관련 실천
교과서 질문

In the hydrocarbon

(d) Identify all the 120° bond angles in the molecule.

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교과서 질문

In the hydrocarbon (b) How many s bonds are there in the molecule?

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교과서 질문

The molecule shown below is called furan. It is represented in typical shorthand way for organic molecules, with hydrogen atoms not shown, and each of the 4 vertices representing a carbon atom.

(e) The C—C—C bond angles in furan are much smaller than those in benzene. The likely reason is which of the following: (i) The hybridization of the carbon atoms in furan is different from that in benzene, (ii) Furan does not have another resonance structure equivalent to the one above, or (iii) The atoms in a five-membered ring are forced to adopt smaller angles than in a six-membered ring.

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교과서 질문

For each of these contour representations of molecular orbitals, identify (a) the atomic orbitals (s or p) used to construct the MO (i)

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교과서 질문

The following is part of a molecular orbital energy-level diagram for MOs constructed from 1s atomic orbitals.

(a) What labels do we use for the two MOs shown?

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교과서 질문

The drawing below shows the overlap of two hybrid orbitals to form a bond in a hydrocarbon. (a) Which of the following types of bonds is being formed: (i) C¬C s, (ii) C¬C p, or (iii) C¬H s?

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