Search SchoolNGR

Monday, 20 April 2026
Register . Login

Consider the following equation; Cr2O7(aq)2- + 14H+(aq) + 6e- → 2Cr3+(aq) + ...

Consider the following equation; Cr2O7(aq)2- + 14H+(aq) + 6e- → 2Cr3+(aq) + 7H2O(I). The oxidation number of chromium changes from
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A -2 to + 3
  • B - 2 to + 6
  • C + 6 to + 3
  • D + 7 to + 6
Correct Answer: Option C
Explanation:

Share question on: