A process or occurrence that is relevant to chemistry or involves chemical reactions.

A notable change or effect observed in chemical substances or reactions.

रासायनिक पदार्थों में बदलाव

English Usage: The chemical phenomenon observed in the lab was unexpected and exciting.

Hindi Usage: प्रयोगशाला में देखी गई रासायनिक घटना अप्रत्याशित और रोमांचक थी।