QQuestionChemistry
QuestionChemistry
"Referring to the most stable Lewis dot structure of CH^2 F^2, what is its molecular geometry?
A. Bent
B. Tetrahedral
C. Trigonal planar
D. Seesaw"
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Determine the central atom
- In CH^2F^2, carbon (C) is the central atom - Carbon has 4 valence electrons - Hydrogen atoms contribute 1 electron each - Fluorine atoms contribute 7 electrons each
Step 3:: Draw the Lewis dot structure
- Total valence electrons: $$4 + (4 \times 1) + (2 \times 7) = 22$$ electrons
- Carbon forms single bonds with 2 hydrogens and 2 fluorines - All atoms will achieve an octet configuration
Step 4:: Analyze electron domain geometry
- Use VSEPR theory - Carbon has 4 electron domains (4 single bonds) - Electron domain geometry is tetrahedral
Step 5:: Determine molecular geometry
- All 4 electron domains are bonding domains - No lone pairs on central carbon - Molecular geometry matches electron domain geometry
Step 6:: Identify the correct answer
- Tetrahedral molecular geometry corresponds to option B
Final Answer
Tetrahedral
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