NEET UG CHEMISTRY MCQ: REDOX REACTIONS

Given the following reactions involving $\mathrm{A, B, C}$ and $\mathrm{D}$

(i) $\mathrm{C}+\mathrm{B}^{+} \rightarrow \mathrm{C}^{+}+\mathrm{B}$

(ii) $\mathrm{A}^{+}+\mathrm{D} \rightarrow$ No reaction

(iii) $\mathrm{C}^{+}+\mathrm{A} \rightarrow$ No reaction

(iv) $\mathrm{D}+\mathrm{B}^{+} \rightarrow \mathrm{D}^{+}+\mathrm{B}$

The correct arrangement of $\mathrm{A, B, C, D}$ in order of their decreasing ability as reducing agent