KIRINYAGA WEST 233/1 CHEMISTRY PAPER 1 - (THEORY)

KIRINYAGA WEST
Kenya Certificate of Secondary Education
233/1
CHEMISTRY PAPER 1 - (THEORY)
JUNE/JULY 2025
Instructions to candidates
a. Answer ALL the questions.
b. Mathematical tables and electronic calculators may be used.
c. All working MUST be clearly shown where necessary.
1. Given below are pH values of different solutions.
Solution
PH value
2.
3.
4.
4.
P
2.0
R
7.0
Q
14.0
T
5
a) Which solution
i) Contains the highest concentration of hydroxide ions.
(1mk)
ii) is likely to be a solution of ethanoic acid
(1mk)
b) Name the reagent used to measure pH.