Your best place to find 2012 past papers of chemistry 12th class from bise gujranwala board. These old up to date papers can be downloaded or viewed online.
2012 Chemistry Past Papers 9th Class BISE Gujranwala Board Analysis
Campus.pk gives you unique insight into each past paper about what are the top chapters and topics.
Chemistry Past Papers 9th Class BISE Gujranwala Board