Question

5 multiple choice 1 point which reagent would convert an amine into a water - soluble salt? hcl (aq) nahco₃ (aq) nacl (aq) naoh (aq)

Explanation:

Step1: Understand amine - acid reaction

Amines are basic. They react with acids to form salts.

Step2: Identify acid among options

HCl (aq) is an acid. It can react with an amine to form a water - soluble ammonium salt. For example, R - NH₂+HCl→R - NH₃⁺Cl⁻.

Step3: Analyze other options

NaHCO₃ (aq) is a weak base, NaCl (aq) is a salt, and NaOH (aq) is a strong base. They do not react with amines to form water - soluble salts in the way required.

Answer:

A. HCl (aq)