Ammonium ions, $\text{NH}_4^{+}$, are produced when ammonia gas reacts with hydrogen chloride gas. Which statement about the changes taking place in this reaction is correct?
- AThe dipole moment of an ammonium ion is greater than the dipole moment of an ammonia molecule.
- BThe H-N-H bond angle decreases when an ammonium ion is formed.
- CThe hybridisation of nitrogen does not change.
- DThere is electron transfer from nitrogen to chlorine.