How is a `pi` (pi) bond formed?

How is a sigma (sigma) bond formed?

How do pi - bonds are formed ? How many pi - bonds are there in sp hydridisation ?

In elimination reactions, two sigma bonds are lost are a new pi bond is formed

A molecule (X) has (i) four sigma bonds formed by the overlap of sp^(2) and s orbitals, (ii) one sigma bond formed by sp^(2) and sp^(2) orbials and (iii) one pi bond formed by P_(z) and P_(z) orbitals. Which of the following is X?

How many d pi - p pi bonds are present in gamma-SO_(3) ?

The number of sigma and pi (TT) bonds present in benzene respectively are

How many sigma and pi bonds are present in acetylene molecule?

How many sigma and pi bonds are in O_2 molecule?

How many "pi" (pi) electrons are there in the following molecule?