Electrolysis 1. These practice questions can be used by students and teachers and is suitable for GCSE AQA Chemistry topic Questions 8462. Level: GCSE AQA ...

Gases were given off at both electrodes. (a) The gas collected at the anode was oxygen. Draw one line from the test for oxygen to the correct result.

Q6. This question is about electrolysis. Aluminium is produced by electrolysing a molten mixture of aluminium oxide and cryolite. (a) Explain why a mixture is ...

Electrolysis. Question Paper. Level. O Level. Subject. Chemistry. Exam Board. Cambridge International Examinations. Topic. Electrolysis. Booklet. Question Paper.

Q1: When an ionic compound is melted or dissolved in water, what happens to the ions? (1 mark) Q2: Define an electrolyte. Q3: Passing an electric current ...

(a) Gases are evolved at both electrodes. (i) Describe a chemical test to show that the gas evolved at the positive electrode is chlorine. (2).

Why can't a solid ionic substance conduct electricity? Ions are in a fixed position and cannot move. 4. Why can molten and solutions of ionic substances ...

This question is about electricity and chemical reactions. (a) Aqueous copper(II) sulfate is an electrolyte. The electrolysis of aqueous copper(II) sulfate ...

1. During the electrolysis of molten potassium chloride, what is made at the cathode? A chlorine. B hydrogen. C potassium.

Оценка 4,7 (26) This document provides past paper questions on electrolysis. It includes 30 multiple choice questions testing understanding of electrolysis concepts.