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Question:

In the organic compound CH2 = CH – CH2 – CH2 – C ≡ CH, the pair of hydridised orbitals involved in the formation of: C2 – C3 bond is:

(a) sp – sp2

(b) sp – sp3

(c) sp2 – sp3

(d) sp3 – sp3

Answer:

 6          5         4           3        2      1

CH2 = CH – CH2 – CH2 – C ≡ CH

In the given organic compound, the carbon atoms numbered as 1, 2, 3, 4, 5, and 6 are sp, sp, sp3, sp3, sp2, and sp2 hybridized respectively. Thus, the pair of hybridized orbitals involved in the formation of C2-C3 bond is sp - sp3.


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