How to find no of pi bonds and sigma bonds in a molecule?
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The first bond between any two atoms is always a Sigma bond... The 2nd and third bonds if present are Pi bonds.
We need to know which atoms are bonded with which other atoms. then only we can know the total number of bonds.
In CO2 : we have O = C = O... there is one sigma and one pi in each C = O.
In O2 : we have O = O. So one sigma and one pi.
C2 H2: H-C≡C-H..... so there is a sigma bond between C and H. there is one sigma and two pi bonds between C and C.
We need to know which atoms are bonded with which other atoms. then only we can know the total number of bonds.
In CO2 : we have O = C = O... there is one sigma and one pi in each C = O.
In O2 : we have O = O. So one sigma and one pi.
C2 H2: H-C≡C-H..... so there is a sigma bond between C and H. there is one sigma and two pi bonds between C and C.
kvnmurty:
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