Q.
Which of the following shows the Lewis dot formula for CO2?
2887
194
Chemical Bonding and Molecular Structure
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Solution:
Step I: Skeleton OCO
Step II : A=1×4 for C+2×6 for O=4+12=16 electrons
Step III : Total no. of electrons needed to achieve noble gas configuration (N) N=1×8+2×8=24
Step IV: Shared electrons, S =N−A=24−16=8 electrons
Step V: O :: C:: O