Molecular Orbital Theory

Which statement is false? A sigma molecular orbital

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

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

• may result from overlap of two s atomic orbitals

• may result from overlap of one s and one p atomic orbitals

Significance of bond order

• To indicate bond strength

• To indicate bond length

• To indicate the existence of a molecule

• All of the mentioned

According to Molecular Orbital Theory, the shape and size of a molecular orbital depends upon _________

• Shape and size of the combining atomic orbitals

• Numbers of the combining atomic orbitals

• Orientation of the combining atomic orbitals

• All of the mentioned

Choose the incorrect statement from the following options.

• In bonding molecular orbital, electron density is low in the region between the nuclei of bonded atoms

• The energy of antibonding molecular orbital is higher than that of atomic orbitals from which it is formed

• Every electron in bonding molecular orbital contributes toward stability of the molecule

• Antibonding takes place when lobes of atomic orbitals have different signs

The filling of molecular orbital takes place according to __________

• The Aufbau Principle

• Pauli Exclusion Principle

• Hund’s rule of maximum multiplicity

• All of the mentioned

Antibonding molecular orbitals are produced by

• constructive interaction of atomic orbitals.

• destructive interaction of atomic orbitals.

• the overlap of the atomic orbitals of two negative ions

• none of these

Tags

NGSS.HS-PS2-4

Choose the correct statement regarding magnetism

• Paramagnetic substances are weakly attracted to an applied magnetic field

• Diamagnetic substances are weakly attracted to an applied magnetic field

• Paramagnetic substances are weakly repelled to an applied magnetic field

• All of the mentioned

Give the orbital designation

• π_2p

• π*_2p

• σ_1s

• σ*_1s

Tags

NGSS.HS-PS1-2

Give the orbital designation.

• σ_2p

• π_2p

• σ*_2p

• π*_2p

Give the orbital designation.

• π_2p

• π*_2p

• σ_2p

• σ*_2p