A substance used in or produced by chemical processes.

रसायन

English Usage: The laboratory was filled with various chemical compounds.

Hindi Usage: प्रयोगशाला विभिन्न रसायनों से भरी हुई थी।

The series of actions or steps taken to achieve an end.

प्रक्रिया

English Usage: The processing of the data took several hours.

Hindi Usage: डेटा की प्रक्रिया में कई घंटे लगे।