Part A According to Valence Bond Theory, in the molecule H H | | C = C | | H H w

Question

Part A

According to Valence Bond Theory, in the molecule  

H   H

|   |

C = C

|   |

H   H

where there is a double bond between the carbon atoms and two hydrogen atoms single bonded to each carbon, what type of orbitals overlap to form the sigma bond between the two carbon atoms?

sp and sp

sp2 and sp2

sp3 and sp3

sp and sp2

sp and sp3

sp2 and sp3

s and s

p and p

Part B

According to Valence Bond Theory, in the molecule  

H   H

|   |

C = C

|   |

H   H

where there is a double bond between the carbon atoms and two hydrogen atoms single bonded to each carbon, what type of orbitals overlap to form the pi bond between the two carbon atoms?

sp and sp

sp2 and sp2

sp3 and sp3

sp and sp2

sp and sp3

sp2 and sp3

s and s

p and p

sp and sp

sp2 and sp2

sp3 and sp3

sp and sp2

sp and sp3

sp2 and sp3

s and s

p and p

Explanation / Answer

Part A: sp2 and sp2

Part B : p and p

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