Step 1:Carbon(EN = 2.5) is much less electronegative than oxygen (EN = 3.5) socarbon is the main atom.

You are watching: Explain why co2 and ccl4 are both nonpolar even though they contain polar bonds.

Step 2:The total number of valence electrons existing in CO2 is:

Group Valence Electrons

C 4A 1 × 4 e– =4 e–

O 6A 2 × 6 e– =12 e–

Total:16 valence e–

Step 3:Fluorine only forms1 bond.

The Lewis structure is:


Step 4:The electronegativity difference in between C and also O is1.0so the C–O shortcut ispolar. Remind thatdipole arrowspoint in the direction of the more electronegative atom.


Step 5:We deserve to see that dipole arrows suggest atopposite directionsso theycancel out.

This way there isno net dipolein the molecule, do itnonpolar.

Therefore, CO2 is a polar molecule.

For CCl4

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Problem Details

Explain why CO2 and also CCl4 space both nonpolar also though they contain polar bonds.

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