1.

In acetylene molecule, between the carbon atoms there are

Answer»

three pi bonds
one SIGMA and two pi bonds
two sigma and one pi bonds
three sigma bonds

Solution :Acetylene - `H-Coverset(sigma)UNDERSET(2pi)EQUIV C-H`
`therefore` Number of `sigma` bonds = 1
Number of `pi` bonds = 2
`therefore (1 sigma + 2pi)` bonds are present between 2 carbon atoms.


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