Question

are the following statements true or false? One sigma bond and one pi bond comprise a...

are the following statements true or false?
One sigma bond and one pi bond comprise a double bond.
A triple bond consists of one sigma bond and two pi bonds.
End-to-end overlap results in a sigma bond.
A double bond consists of two pairs of electrons.
Bonds formed from atomic p orbitals are always sigma bonds.
A pi bond restricts rotation about the sigma bond axis.

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Answer #1

1) One sigma bond and one pi bond comprise a double bond.= True

2) A triple bond consists of one sigma bond and two pi bonds.= True

3) End-to-end overlap results in a sigma bond. = True.

4) A double bond consists of two pairs of electrons. = True. ( 4 electrons = 2 pairs)

5) Bonds formed from atomic p orbitals are always sigma bonds. = False  because depending on orientation a p- orbital can form either sigma or pi bond.

6)  A pi bond restricts rotation about the sigma bond axis.= True.

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