How many number of sigma and pi bonds are present in acetylene?
Two pi and three sigma bonds. Among three sigma bonds two are used for holding C and H atoms (sigma bond between sp hybridsed and 1s orbital) and the third one is formed between C and C (sigma bond between two sp hybridised orbitals) Two pi bonds are orthogonally arranged between two C atoms (pi bonds are formed between two un-hybridised p orbitals belonging to C atoms). C atoms in C2H2 (acetylene) are sp hybridised. Kinshuk is wrong, he has messed it up with ethylene. Re: If you are a graduate student or a high school student go through the chapters of your book, those books have more elaborate information.
