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is a generalized structural representation which can be used for all of the following, except: A) OF2 B) NH2- C) H₂S D) BeBr2 E) There is no exception.

is a generalized structural representation which can be used for all of the following, except: A) OF2 B) NH2- C) H₂S D) BeBr2 E) There is no exception.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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### Structural Representation in Chemistry Understanding the generalized structural representation of molecules is fundamental in chemistry. The provided structure is as follows: ``` Y \ Z / Y ``` This represents a central atom `Z` with lone pairs of electrons and two surrounding atoms `Y`. **Question Analysis:** The structure \( \overset{Y}{\underset{Y}{Z}} \) is to be evaluated for applicability to the following compounds or species, except for one: **Options:** A) OF₂ B) NH₂⁻ C) H₂S D) BeBr₂ E) There is no exception. ### Evaluation of Options: - **A) OF₂ (Oxygen Difluoride):** The structure of OF₂ has the central oxygen atom (Z) with lone pairs and two fluorine atoms (Y), fitting the given structure. - **B) NH₂⁻ (Amide ion):** The NH₂⁻ ion has a central nitrogen atom (Z) with lone pairs and two hydrogen atoms (Y), which fits the given structure. - **C) H₂S (Hydrogen Sulfide):** The molecule has a central sulfur atom (Z) with lone pairs and two hydrogen atoms (Y), conforming to the structure. - **D) BeBr₂ (Beryllium Bromide):** Beryllium bromide has a linear structure with no lone pairs on the central beryllium atom (Be), and two bromine atoms. This does not match the given structure since Be does not possess lone pairs in BeBr₂. - **E) There is no exception:** This is not valid as BeBr₂ does not fit the provided structure. ### Conclusion: The correct answer is **D) BeBr₂**. This compound does not fit the given generalized structural representation, as it does not have lone pairs on the central atom. --- For further learning, students are encouraged to explore molecular geometry and the VSEPR (Valence Shell Electron Pair Repulsion) theory, which helps in predicting the shapes of molecules based on electron pair interactions.
Transcribed Image Text:### Structural Representation in Chemistry Understanding the generalized structural representation of molecules is fundamental in chemistry. The provided structure is as follows: ``` Y \ Z / Y ``` This represents a central atom `Z` with lone pairs of electrons and two surrounding atoms `Y`. **Question Analysis:** The structure \( \overset{Y}{\underset{Y}{Z}} \) is to be evaluated for applicability to the following compounds or species, except for one: **Options:** A) OF₂ B) NH₂⁻ C) H₂S D) BeBr₂ E) There is no exception. ### Evaluation of Options: - **A) OF₂ (Oxygen Difluoride):** The structure of OF₂ has the central oxygen atom (Z) with lone pairs and two fluorine atoms (Y), fitting the given structure. - **B) NH₂⁻ (Amide ion):** The NH₂⁻ ion has a central nitrogen atom (Z) with lone pairs and two hydrogen atoms (Y), which fits the given structure. - **C) H₂S (Hydrogen Sulfide):** The molecule has a central sulfur atom (Z) with lone pairs and two hydrogen atoms (Y), conforming to the structure. - **D) BeBr₂ (Beryllium Bromide):** Beryllium bromide has a linear structure with no lone pairs on the central beryllium atom (Be), and two bromine atoms. This does not match the given structure since Be does not possess lone pairs in BeBr₂. - **E) There is no exception:** This is not valid as BeBr₂ does not fit the provided structure. ### Conclusion: The correct answer is **D) BeBr₂**. This compound does not fit the given generalized structural representation, as it does not have lone pairs on the central atom. --- For further learning, students are encouraged to explore molecular geometry and the VSEPR (Valence Shell Electron Pair Repulsion) theory, which helps in predicting the shapes of molecules based on electron pair interactions.
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