MUSLIM SCHOOLS JOINT EXAMINATIONS TEST (MUSJET) – FORM 4 CHEMISTRY PAPER 1

MUSLIM SCHOOLS JOINT EXAMINATIONS TEST (MUSJET) – FORM 4
Kenya Certificate of Secondary Education
233/1
CHEMISTRY PAPER 1
JULY 2025
INSTRUCTIONS TO CANDIDATES
Answer ALL questions in the spaces provided.
1. The diagram below shows two methods of gas collection in the laboratory.
2.
3.
4.
5.
(a) Name the methods I and II.
(2mks)
(b) From the methods above, identify one that is appropriate for the collection of carbon (ii) oxide.
(1mk)
When lead (ii) nitrate is heated one of the products formed is a brown gas.
(a) Write the equation of the reaction that occurs.
(1mk)
3
(b) If 10.30dm of the brown fumes were produced, calculate the mass of the lead (ii) nitrate that was
heated. (RFM of Lead (ii) nitrate = 331, molar gas volume = 24dm3).