Ethyne molecule is formed when two carbon atoms joined together to form a sigma bond by:
Correct answer: D. sp-sp overlap
- A. sp-s overlap
- B. sp3-sp3 overlap
- C. 2py-2py overlap
- D. sp-sp overlap
Explanation
A is incorrect as sp-s overlap isnt present in ethyne molecule.B is incorrect as sp3-sp3 overlap isnt present in ethyne molecule.C is incorrect as 2py-2py forms a pi bond which isnt present in ethyne molecule.D is correct as ethyne has sp-sp bonds (fact)
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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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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