How many sigma bonds are there in C2H2?

• How does sigma(##sigma##) bonds form?

• They are formed due to linear overlapping of

  • ## S-S##orbitals
  • ##S-P## orbitals
  • ##P-P## orbitals

• And , when two hybrid orbitals are linearly overlapped the result is a ##sigma## bond.

• So in ##C_2H_2## ,there is a triple bond between ##02## carbon atoms ,one is a ##sigma## bond and others are ##pi ## bonds.

• And there is two other , which are formed with hydrogen. Formation of ##sigma## bond in that triple bond is a result of linear overlapping of two ##sp## hybrid orbitals.

• Here is an orbital diagram of ##C_2H_2##

• Therefore total no. ##sigma## bonds in ##C_2H_2##( Acetylene) is ##03##.

====(Formation of ##C_2H_2## in sense of orbitals)

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• So I hope that this is helpful.