QQuestionChemistry
QuestionChemistry
Which of the following molecules is nonpolar?
A. CH^2F^2
B. BFCl^2
C. NH^2Br
D. SeO^3
E. SCl^2
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Answer
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Step 1:Let's solve this step by step by analyzing the molecular geometry and polarity of each molecule.
Step 2:: Understand Polarity Determination
To determine molecular polarity, we need to: - Identify the central atom - Determine the molecular geometry - Analyze the electronegativity differences between atoms - Check if bond dipoles cancel out
Step 3:: Analyze CH^2F^2
- Result: $$\text{CH}_{2}\text{F}_{2}$$ is POLAR
- Central atom: Carbon (C) - Geometry: Tetrahedral - Fluorine is more electronegative than hydrogen - Bond dipoles do not cancel completely
Step 4:: Analyze BFCl^2
- Result: $$\text{BFCl}_{2}$$ is POLAR
- Central atom: Boron (B) - Geometry: Trigonal planar - Fluorine and chlorine have different electronegativities - Bond dipoles do not cancel
Step 5:: Analyze NH^2Br
- Result: $$\text{NH}_{2}\text{Br}$$ is POLAR
- Central atom: Nitrogen (N) - Geometry: Trigonal pyramidal - Bromine and hydrogens have different electronegativities - Bond dipoles do not cancel
Step 6:: Analyze SeO^3
- Result: $$\text{SeO}_{3}$$ is NONPOLAR
- Central atom: Selenium (Se) - Geometry: Trigonal planar - Oxygen atoms are highly electronegative - Bond dipoles cancel out due to symmetry
Step 7:: Analyze SCl^2
- Result: $$\text{SCl}_{2}$$ is POLAR
- Central atom: Sulfur (S) - Geometry: Bent - Chlorine atoms have different electronegativity - Bond dipoles do not cancel
Final Answer
SeO^3 is the nonpolar molecule.
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