Question

When HCl fumes and $N{H}_3$ fumes are introduced into opposite ends of a long, dry glass tube, a white ring forms in the tube. Which of the following statement explains this phenomenon best?

• A. $N{H}_{4}Cl$ forms
• B. HCl diffuses faster
• C. $N{H}_3$ diffuses faster
• D. The ring occurs closer to the end into which HCl was introduced
• E. The ring occurs in the very middle of the tube

Answer 1

The correct option is A $N{H}_{4}Cl$ forms

When HCl fumes and $N{H}_3$ fumes are introduced into opposite ends of a long, dry glass tube, a white ring forms in the tube due to formation of $N{H}_{4}Cl$.
$HCl+N{H}_3\to N{H}_{4}Cl$