23 Which statement about ammonia or the ammonium ion is correct?A Ammonia gas is produced when an aqueous solution containing the ammonium ion isreacted with a strong acid.B Silver iodide is soluble in a concentrated aqueous solution of ammonia.C The ammonium ion has the same number of electrons as a methane molecule.D The square planar ammonium ion contains a dative covalent bond

Statement A: "Ammonia gas is produced when an aqueous solution containing the ammonium ion is reacted with a strong acid."

To determine if this statement is correct, we need to evaluate the properties of ammonia and the ammonium ion.

1. Ammonia gas (NH3) is a colorless gas with a pungent odor. It is commonly used in cleaning products and as a fertilizer.
2. The ammonium ion (NH4+) is a positively charged polyatomic ion formed by the addition of a hydrogen ion (H+) to ammonia.

Based on this information, we can analyze the statement:

When an aqueous solution containing the ammonium ion is reacted with a strong acid, it undergoes a reaction known as neutralization. In this reaction, the ammonium ion (NH4+) reacts with the hydrogen ion (H+) from the strong acid to form ammonia gas (NH3) and water (H2O).

Therefore, statement A is correct.