AQA Jan 2012 Paper 5 Q5

Answers available below

do not write outside the box some electrode potentials are shown in the table below these values are not listed in numerical order electrode half equation cl aq e cl aq hocl aq h aq e cl aq h o i h o aq h aq e h o i o g h aq e h o aq o g h aq e h o i e v a identify the most powerful reducing agent from all the species in the table mark b use data from the table to explain why chlorine should undergo a redox reaction with water write an equation for this reaction explanation equation marks c suggest one reason why the redox reaction between chlorine and water does not normally occur in the absence of light mark d use the appropriate half equation from the table to explain in terms of oxidation states what happens to hydrogen peroxide when it is reduced marks wmp jan chem do not write outside the box e use data from the table to explain why one molecule of hydrogen peroxide can oxidise another molecule of hydrogen peroxide write an equation for the redox reaction that occurs explanation equation marks turn over for the next question turn over wmp jan chem

Show answer