CIE iGCSE Co-Ordinated Science C4.1 Electrolysis Exam Style Questions Paper 1
Question
The diagram shows the electrolysis of dilute sulfuric acid.
Gas G ignites with a ‘pop’ when it is tested with a lighted splint.
What is gas G and at which electrode is it formed?
▶️Answer/Explanation
Ans :B
Question
The diagram shows the electrolysis of dilute sulfuric acid using inert electrodes.
Which row shows the products formed at each electrode and describes the bonding in sulfuric acid?
▶️Answer/Explanation
Ans :A
Question
Which process is used to produce sodium and chlorine from the compound sodium chloride?
(A) chromatography
(B) cracking
(C) distillation
(D) electrolysis
▶️Answer/Explanation
Ans: D
Question
Dilute sulfuric acid is electrolysed using the apparatus shown.
Which product forms at the cathode?
A hydrogen
B oxygen
C sulfur dioxide
D water vapour
▶️Answer/Explanation
Ans : A