• # question_answer Beryllium chloride fumes in air.

Beryllium chloride is a salt of strong acid and weak base. It undergoes hydrolysis in the presence of moisture present in air to form fumes of HCl gas. Therefore, it fumes in moist air. $BeC{{l}_{2}}+2{{H}_{2}}O\xrightarrow{\,}\,Be{{(OH)}_{2}}+2HCl$