Vsepr & Hybridisation

Question

Which species is diamagnetic?

RankGuru · Accepted Answer

1. **Magnetic Properties**: 
   - **Paramagnetic**: Contains at least one unpaired electron. Attracted to magnetic fields.
   - **Diamagnetic**: All electrons are paired. Feebly repelled by magnetic fields.
2. **VBT/MOT Analysis**:
   - **$O_2$**: Paramagnetic (has two unpaired electrons in $\pi^*$ orbitals).
   - **$NO$**: Paramagnetic (has 11 valence electrons; an odd number always results in an unpaired electron).
   - **$O_2^-$ (Superoxide)**: Paramagnetic (has 17 total electrons; odd number).
   - **$CO$**: Has 14 electrons (isoelectronic with $N_2$). All orbitals are fully occupied by pairs of electrons.
3. **Result**: **$CO$** is diamagnetic.

Vsepr & Hybridisation

Select the correct option:

🔒 Solution Hidden from View

More chemical bonding and molecular structure Practice Questions

Which statement about hydrogen bonding is correct?

Formal charge on oxygen in the nitrate ion (NO3−) using a structure with one double bond and two sin...

Which set lists increasing bond length for the carbon–oxygen bonds?

Which statement best explains why PF5 is stable while NF5 is not?

The approximate bond angle in NH3 is:

Hybridisation of central atom in SF6 is:

The geometry around carbon in CH2=CH2 (ethene) is:

Number of σ and π bonds respectively in benzene (C6H6) are:

Which pair correctly matches molecule with geometry?

Bond order of O2 according to MO theory is:

Predict the hybridisation of carbon in acetylene (C2H2).

Which factor most strongly increases ionic character in a bond?

About This Question

Solution