(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).

To which electrodes are the ions attracted during this electrolysis? attracted to anode attracted to cathode. A. Cu. 2+ and H.

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

Summary notes, flashcards and past exam questions by topic for CAIE IGCSE Chemistry Topic 4 - Electrochemistry.

X. During the electrolysis, sodium was formed at electrode P and chlorine at electrode Q. Which row correctly identifies P, Q and X? P. Q. X. A anode cathode.

CIE IGCSE Chemistry Resources. REVISION NOTES TOPIC QUESTIONS PAST PAPERS. EXAM QUESTIONS. QUESTION 3 ? ... • Extraction of Aluminium by electrolysis, IGCSE ...

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

Cambridge IGCSE Chemistry – past and specimen paper questions and answers. Redox, electrochemistry and Group VII. CORE questions. Page 2. 114 v1 4Y11. Cambridge ...

There are forty questions on this paper. Answer all questions. ○. For each question there are four possible answers A, B, C and D. Choose the one you ...

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 ...