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
18.
4.
5.
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
18.
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.