(i) Cr3+
(ii) MnO4–
(iii) Cr2O72–
(iv) Mn2+
Correct Answer: (i) Cr3+
Explanation: Cr3+ is the most stable oxidised species when compared to the rest of the options.
(i) Cr3+
(ii) MnO4–
(iii) Cr2O72–
(iv) Mn2+
Correct Answer: (i) Cr3+
Explanation: Cr3+ is the most stable oxidised species when compared to the rest of the options.