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ch2cl2 sigma and pi bonds
cocl2 sigma and pi bonds
sigma bonds and pi bonds in c2h2
c2h2 sigma and pi bonds
ch2chch3 sigma and pi bonds
ch3no2 sigma and pi bonds
ch3chchco2h sigma and pi bonds
c2h4 sigma and pi bonds
c2h6 sigma and pi bonds
co2 sigma and pi bonds
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