8 sigma bonds and 1 pi bond.
Only sigma bonds are present in ethane. There is one carbon-carbon sigma bond and six carbon-hydrogen sigma bonds in C2H6.
one sigma and one and half pi bonds
4.
5.
8 sigma bonds and 1 pi bond.
Only sigma bonds are present in ethane. There is one carbon-carbon sigma bond and six carbon-hydrogen sigma bonds in C2H6.
one sigma and one and half pi bonds
4.
5.
26 sigma bonds
12 sigma bonds.
there are 97 sigma bonds and 11 pi bonds
3 sigma bonds!
Remember there are many forms of cumulene. In a cumulene that forms like this H2C=C=C=C=CH2 there are 7 sigma bonds and 3 pi. When there is a double bond ( = ) one is always a sigma bond the other is pi, single bonds are sigma.
there are 6 sigma bonds in a benzene ring Correction: There are 6 sigma carbon-carbon bonds...but there are also 6 carbon-hydrogen sigma bonds. Thus there are twelve sigma bonds in a benzene ring.
I am guessing you mean how many. NH3 contains 3 sigma bonds. There is no other type of sigma bonds.