Mark the false statements. a. a π bond restricts rotation about the bond axis. b. bonds formed from the overlap of atomic s orbitals are always σ bonds. c. a triple bond consists of one π bond and two σ bonds. d. end-to-end overlap of orbitals results in a bond with electron density above and below the bond axis. e. a π bond consists of two pairs of electrons. f. two σ bonds comprise a double bond.

c. a triple bond consists of one π bond and two σ bonds.

d. end-to-end overlap of orbitals results in a bond with electron density above and below the bond axis.

e. a π bond consists of two pairs of electrons.

f. two σ bonds comprise a double bond.

Explanation:

Mark the false statements.

a. a π bond restricts rotation about the bond axis. TRUE.

b. bonds formed from the overlap of atomic s orbitals are always σ bonds. TRUE.

c. a triple bond consists of one π bond and two σ bonds. FALSE. A triple bond consists of one σ bond and two π bonds.

d. end-to-end overlap of orbitals results in a bond with electron density above and below the bond axis.  FALSE. End-to-end overlap of orbitals results in a bond with electron density along the bond axis.

e. a π bond consists of two pairs of electrons. FALSE. A π bond consists of one pair of electrons.

f. two σ bonds comprise a double bond. FALSE. A double bond is comprised of one σ bond and one π bond.