AH Chemistry Molecular Orbitals

Atoms that are sp2 hybridized form ____ pi bond(s).

• 1

• 3

• 4

• 2

What is the chemical formula of benzene?

• CH4

• C2H5OH

• C6H6

• C2H6

Which statement is false? A sigma molecular orbital

• The overlap of p atomic orbitals perpendicular to the molecular axis (side-on) may result.

• may result from the overlap of p atomic orbitals along the molecular axis (head-on).

• may result from overlap of two s atomic orbitals.

• may be either bonding or antibonding.

 

If four orbitals on one atom overlap four orbitals on a second atom, how many molecular orbitals will form?

• 1

• 16

• 4

• 8

A π (pi) bond is the result of the

• overlap of two s orbitals

• overlap of an s orbital and a p orbital

• overlap of two p orbitals along their axes

• sidewise overlap of two parallel p orbitals

• sidewise overlap of two s orbitals

s-s overlap is a _______

• σBond

• πBond

Which is the stronger bond?

• σBond

• πBond

Two carbon atoms form a linear shaped ethene, C₂H₄, molecule when bonded with four other hydrogen atoms. Prior to bonding, the carbon atom

• undergoes sp hybridisation

• does not hybridise

• undergoes sp³ hybridisation

• undergoes sp² hybridisation

Rank the energy of a bonding MO in comparison to its atomic orbital.

• higher

• lower

• equal

A molecular orbital that can be occupied by two electrons of a covalent bond is called a bonding orbital.

• True

• False