Which statement concerning the ammonium ion is correct?
- AIt can act as a Brønsted-Lowry base.
- BIt can react with $ ext{OH}^-$ to give ammonia.
- CIt is pyramidal with bond angles of $107^{\circ}$.
- DThe nitrogen atom is $ ext{sp}^2$ hybridised.
Chemistry 9701 · AS & A Level · Chemical bonding