K 2 CrO 4 oxidises KI in the presence of HCl to I 2 . The equivalent weight of the K 2…
Chemistry · JEE Main · NTA Exams — Redox Reactions and Electrochemistry
K2CrO4 oxidises KI in the presence of HCl to I2. The equivalent weight of the K2CrO4 is
- \(\frac{\mathrm{Mw}}{3}\)
- \(\frac{\mathrm{Mw}}{6}\)
- \(\left[\underset{\downarrow \underset{+6}{\mathrm{r}} \mathrm{O}_{4}^{2-}}{\mathrm{Cr}_{4}} \rightarrow \underset{\downarrow+3}{2 \mathrm{Cr}^{+3}}\right] \mathrm{n}=3\)
- \(\mathrm{GEW}=\frac{\mathrm{GMW}}{3}\)
Answer
(C) [ +6 r O _ 4 ^ 2- Cr _ 4 +3 2 Cr ^ +3 ] n =3
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