A.C.K DIOCESE OF MUMIAS JOINT EVALUATION 233/1 CHEMISTRY PAPER - THEORY

A.C.K DIOCESE OF MUMIAS JOINT EVALUATION
233/1
CHEMISTRY PAPER - THEORY
JUNE 2025
INSTRUCTIONS TO CANDIDATES
▪ Answer all the questions in the spaces provided in the question paper.
▪ Mathematical tables and silent scientific calculators may be used.
▪ ALL the working must be clearly shown where necessary.
1. An ion of element A is represented by the formula;
40 A 2+
20
a) Write the electron arrangement of the ion.
(1 mark)
b) Draw a labelled diagram showing the atomic structure of A.
(2 marks)
2. Name the apparatus that can be used to:
a) Store and keep substances free from moisture.
(1 mark)
b) Measure volume of solutions more accurately than a beaker.
(1 mark)
3. A student tested the pH of solution I, II, III, IV and V using universal indicator and obtained the results