<span><span>Compound A is a Primary</span> amine.</span><span><span>Compound B is a tertiary</span> amine.</span><span><span>Compound C is a secondary</span> amine.</span><span>Compound D is. ammonia </span>
Arrhenius bases are
substances which produces hydroxide ions in solution. The <span>only negative ion in an aqueous solution is the hydroxide ion. The answer is number 4.</span>