• # question_answer $PC{{l}_{3}}$ is stored in a well stoppered bottle because A)  It is decomposed by lightB)  It is highly volatileC)  It reacts with air to form $POC{{l}_{3}}$D)  It reacts with moisture of air

$PC{{l}_{3}}$ is stored in a well stoppered bottle because it reacts with moisture of air. $PC{{l}_{3}}+3{{H}_{2}}O\xrightarrow{{}}{{H}_{3}}P{{O}_{3}}+3HCl$