DSpace Collection: http://elearn.psgcas.ac.in:8080/jspui/handle/123456789/2190 Mon, 06 Apr 2026 23:55:18 GMT 2026-04-06T23:55:18Z CHEMISTRY http://elearn.psgcas.ac.in:8080/jspui/handle/123456789/2191 Title: CHEMISTRY Fri, 29 Aug 2025 00:00:00 GMT http://elearn.psgcas.ac.in:8080/jspui/handle/123456789/2191 2025-08-29T00:00:00Z