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Question 28

What is the change in oxidation number of manganes in the reaction represented by the following equation? MnO-4(aq) + 8H+(aq) + 5e- → Mn2+(aq) + 4H2O(l)

  • A.+3 to + 2
  • B.+ 4 to + 2
  • C.+ 5 to + 2
  • D.+ 7 to 2
Objective

Question details

Exam body
WAEC
Subject
Chemistry
Year
2010
Question no.
#28
Type
Objective
Previous · Q27Which of the following statements about the electrolysis of CuSO 4(aq) using… Next · Q29 The quantity of electricity required to discharge 1 mole of univalent ion is

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