Set 2 U C E Chemistry Paper 1 2026 Standard Exam

@2026 𝑈.𝐶.𝐸 𝐶ℎ𝑒𝑚𝑖𝑠𝑡𝑟𝑦 𝑆𝑒𝑟𝑖𝑒𝑠 𝐵𝑦 𝑊𝑎𝑠𝑎𝑘𝑖𝑛𝑎 𝐽𝑢𝑙𝑖𝑢𝑠 𝑀.0787093081 1 545/1 CHEMISTRY Paper 1 2026 2 hours SET 2 Uganda Certificate of Education CHEMISTRY Paper 1 2 hours INSTRUCTIONS TO CANDIDATES: This paper consists of two Sections; A and B. It has six examination items. Section A has two compulsory items. Section B has two Parts; I and II. Answer one item from each part. Answer four items in all. Answers to Section A must be written in the spaces provided while those of section B must be written on the answer booklet(s) provided. Any additional item(s) answered will not be scored. Use where necessary; Ca = 40; Mg=24; C = 12, O = 16; 1 mole of a gas occupies 22.4 dm³ at s.t.p. Item No. Basic Code Weighted Score Scores’ Initials 1 T D E 2 C X I 3/4 P S B 5/6 N M Be Total Weighted Score Name: …………………………………………………………………………………. Signature …………………….. For Scorers’ Use Only Total Weighted Score Initials @2026 𝑈.𝐶.𝐸 𝐶ℎ𝑒𝑚𝑖𝑠𝑡𝑟𝑦 𝑆𝑒𝑟𝑖𝑒𝑠 𝐵𝑦 𝑊𝑎𝑠𝑎𝑘𝑖𝑛𝑎 𝐽𝑢𝑙𝑖𝑢𝑠 𝑀.0787093081 2 SECTION A Answer all items in this section Item 1: Juma lives in a rural community where most households use hard water from a borehole. One afternoon, while preparing his school uniform, he accidentally spilled tea on his white shirt. He decided to clean it using ordinary product. After washing and rinsing several times, brown stains remained on the shirt. Task: As a chemistry learner; (a) Identify the mistake Juma made when choosing the cleaning product. __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ (b) Explain how the cleaning product works. __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ ________________________________________________________________________ (c) Advise Juma on the challenges associated with long-term use of the product. __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ @2026 𝑈.𝐶.𝐸 𝐶ℎ𝑒𝑚𝑖𝑠𝑡𝑟𝑦 𝑆𝑒𝑟𝑖𝑒𝑠 𝐵𝑦 𝑊𝑎𝑠𝑎𝑘𝑖𝑛𝑎 𝐽𝑢𝑙𝑖𝑢𝑠 𝑀.0787093081 3 (d) Evaluate the product used. …