Oxidation, reduction and redox equations

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Question 3
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Which compound can decolourise acidified potassium manganate(VII) solution?

Na2SO4\text{Na}_2\text{SO}_4Na2​SO4​

K2CO3\text{K}_2\text{CO}_3K2​CO3​

Na2SO3\text{Na}_2\text{SO}_3Na2​SO3​

KNO3\text{KNO}_3KNO3​

Oxidation, reduction and redox equations Questions

  1. A Level
  2. /Chemistry
  3. /Oxidation, reduction and redox equations