Class 11 Chemical Bonding

Which of the following statements is correct?

• In the formation of dioxygen from oxygen atoms 10 molecular orbitals will be formed

• All the molecular orbitals in the dioxygen will be completely filled.

• Total number of bonding molecular orbitals will not be the same as the total number of antibonding orbitals in dioxygen.

• Number of filled bonding orbitals will be the same as number of filled antibonding orbitals.

The B.O of CO is ________

Molecules are held together in a crystal by

• hydrogen bond

• electrostatic attraction

• Van der Waal’s attraction

• dipole-dipole attraction

Shape of HC ≡ CH is _____________

MX₆ is a molecule with octahedral geometry. How many X – M – X bonds are at 180^o?

• 4

• 2

• 6

• 3

The shape of H₃O^{+ is _______________}

The electronic configuration of the outer most shell of the most electronegative element is

• 2s²2p⁵

• 3s²3p⁵

• 5s²5p⁵

• 4s²4p⁵

HF has a_________ bond

Which of the following statements are not correct?

• NaCl being an ionic compound is a good conductor of electricity in the solid state.

• In canonical structures there is a difference in the arrangement of atoms.

• Hybrid orbitals form stronger bonds than pure orbitals.

• VSEPR Theory can explain the square planar geometry of XeF4.

sp orbital has a _____________ shape