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Uganda Advanced Certificate Of Education Senior Five Chemistry Paper Items 2025

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Page 1 of 16 Name : …………………………………………………………………………………………… ………… ……… Combination : ………………… Signature : ……………. ………………………………………… P525/1 CHEMISTRY Paper 1 2024 2𝟑 𝟒 Hours Uganda Advanced Certificate of Education EOT II EXAMINATIONS S.5 CHEMISTRY Paper 1 2Hours 45 minutes INSTRUCTIONS: Answer all questions in section A and six questions from section B. All answers must be written in the spaces provided. The Periodic Table, with relative atomic masses is attached at the end of the paper. Mathematical tables (3 – figure tables) are adequate or non – programmable scientific electronic calculators may be used. Illustrate your answers, with equations where applicable. Where necessary, use the following. o Molar gas constant, R = 8.31kjmol-l o Molar volume of a gas at s.t .p is 22.4 liters. o Standard temperature = 273K o Standard pressure = 101325Nm-2 For Examiner’s Use Only 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Total Page 2 of 16 SECTION A (46 MARKS) Answer all questions in this section. 1. a) Complete the following nuclear equations. (i) 𝐴𝑙1327 + 𝑛01 β + …………………… ……. (01mark) (ii) 𝑈92239 𝑈91239 + ………………… …….. (01Mark) (iii) 𝑃𝑢94239 + 𝐻𝑒24 …………….. + 𝐴𝑙1327 (01Mark) b) The halt – life of a radioactive element X is 36 years. After how many years will the element take to decay to 25%. (02Marks) …………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………… 2. An organic compound R, has the structure. CH3CH CHC CH a) Name the functional groups present in compound R. (01mark) …………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………. b) Write equation for the reaction between R an d (i) Alkaline potassium manganat e (VII) solution. (01Mark) …………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………… (ii) Ammoniacal silver nitr ate solution. (01Mark) Page 3 of 16 …………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………… c) State what would be observed in (b ) (i) and …
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Uganda Advanced Certificate Of Education Senior Five Chemistry Paper Items 2025, is an educational document on StudyUganda.com. This resource includes: "Page 1 of 16 Name : …………………………………………………………………………………………… ………… ……… Combination : ………………… Signature : ……………. ………………………………………… P525/1 CHEMISTRY Paper 1 2024 2𝟑 𝟒 Hours Uganda ……" (Format: PDF) — 1.44 MB, 16 pages. Added July 23, 2026.

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