P525 2 Chemistry Uace Samplepaper 2026

© 2026 Uganda National Examinations Board Turn Over UGANDA NATIONAL EXAMINATIONS BOARD Uganda Advanced Certificate of Education CHEMISTRY Paper 2 (Practical) 3 hours 15 minutes INSTRUCTIONS TO CANDIDATES This examination paper consists of two compulsory examination items. Responses to these items must be written in the answer booklet provided. Begin each item on a fresh page. All working must be clearly shown. Graph papers will be provid ed. Mathematical tables and silent non-programmable scientific calculators may be used. You are not allowed to use reference books (i.e, text books, booklets on qualitative and quantitative analysis, etc. ) P525/2 CHEMISTRY Paper 2 (Practical) 2026 3¼ hours 2 1. Organic compounds have many applications such as being used as solvents in industries, preservation of food stuffs and biological tissues. A secondary school is organising a science exhibition where students will showc ase various chemical products made using organic compounds among other substances. When the organisers of the exibition requested for samples, it was discovered that one of the containers did not bear a label. The organisers asked th e students to use the content of the unlabelled container to determine the nature of organic compound as well as its likely application so that a l abel is printed before the exhibition. The students, however, did not know how this could be done and, hence, needed help. You have been provided with liquid Q which is a sample of the unknown organic compound obtained from the unlabeled container. Task: a) Design and carry out systematic qualitative analysis investigation to generate information to be printed on the label. (At least 8 tests are required ). b) Make justifiable recommendations on the most likely applications of Q. 3 END 2. Magnesium oxide has a potential of being used as a binder during construction. The enthalpy …