Question 3
Consider the following equation; Cr2O7(aq)2- + 14H+(aq) + 6e- → 2Cr3+(aq) + 7H2O(I). The oxidation number of chromium changes from
Objective
Question details
- Exam body
- WAEC
- Subject
- Chemistry
- Year
- 2002
- Question no.
- #3
- Type
- Objective
More from this paper
- Q1If the relative molecular mass of an element is not a whole number, it can be…
- Q5If two metallic ions of the same concentration migrate to a graphite cathode…
- Q6When concentrated sodium chloride solution is electrolysed using inert…
- Q7Which of the following processes takes place during the production of margarine…
- Q8Which of the following compounds can be represented by the molecular formula C 2…
- Q9When alkynes are hydrogenated completely, they produce compounds with the…