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Question
In the organic compound CH2 = CH – CH2 – CH2 – C ≡ CH, the pair of hybridized orbitals involved in the formation of: C2 – C3 bond is ______.
Options
sp – sp2
sp – sp3
sp2 – sp3
sp3– sp3
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Solution
In the organic compound CH2 = CH – CH2 – CH2 – C ≡ CH, the pair of hybridized orbitals involved in the formation of: C2 – C3 bond is sp2 – sp3.
Explanation:
\[\ce{\overset{1}{C}H2 = \overset{2}{C}H - \overset{3}{C}H2 - \overset{4}{C}H2 - \overset{5}{C} ≡ \overset{6}{C}H}\]
sp2 sp2 sp3 sp3 sp sp
we know that when both double and triple bonds are present at equivalent positions, then we have to give preference to the double bond.
hence, the numbering of the Carbon chain starts near the double bond. here, it is clear which is the C2-C3 bond. hence, C2-C3 bond is formed by overlap of sp² and sp³ orbitals.
We can see that the pair of hybridized orbitals involved in the formation of C2 - C3 bond is sp2 - sp3
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