2-Butyne contains:______________?
Correct answer: D. both sp and sp3 hybridised carbon atoms
- A. sp hybridised carbon atoms only
- B. sp3 hybridised carbon atoms only
- C. both sp and sp2 hybridised carbon atoms
- D. both sp and sp3 hybridised carbon atoms
- E. All types of carbons with sp,sp2,Sp3
Explanation
The structure of 2-butyne is CH3-C≡C-CH3. The two carbons in the triple bond are sp hybridised, while the two methyl carbons form four single bonds and are sp3 hybridised, so both sp and sp3 carbons are present. The likely mistake is choosing c by assuming that all unsaturated compounds contain sp2 carbons, although sp2 hybridisation belongs to double-bonded carbon.
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About Hybridization
Hybridization explains bonding by combining atomic orbitals to form equivalent hybrid orbitals with definite geometries. Coverage includes sp, sp², sp³, sp³d and sp³d² hybridization, their shapes and bond angles, and the relation of sigma and pi bonds to molecular structure.
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