Question

The number of pure and hybrid orbitals in 1,3-butadiene
are respectively
(1) 10 and 12
(2) 12 and 10
(3) 10 and 10
(4) 12 and 12​

Answer 1

Answer:

10 and 12

Explanation:

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Answer 2

Answer:

The number of pure and hybrid orbitals in 1,3-butadiene are 10 and 12, so option (1) is the correct answer

Explanation:

In atomic structure,  $1,3-butadiene$ are conjugated dienes simple and basic conjugated diene and it has a very important role in the synthesis of the polymer.

each and every alkene carbon in 1-3 dienes are $sp^{2}$ hybridized and hence have 1 unhybridized $p$ orbital.

4 $p$ orbitals in $1,3-butadiene$ overlap to form a conjugated system which can be represented by the resonance form.

The 4 $2p$ atomic orbitals combine to form 4 $pi$ molecular orbitals of increasing energy.

in ,1,3-butadiene 2 bonding $pi$ orbitals are and 2 anti-bonding $pi$ orbitals. The combination of 4 $pi$ molecules orbitals that is lower in energy than those created by an unconjugated  the alkene. the 4 $pi$  electrons of 1,4-butadiene completely fill the bonding molecular orbitals giving is the additional stability associated with conjugated double bonds.