**Passage 5:** A mixture of and weighing g is treated with excess in acidic medium. The liberated io — Redox Reactions and Volumetric Analysis Chemistry Question
Question
**Passage 5:** A mixture of $K_2Cr_2O_7$ and $KMnO_4$ weighing $0.576$ g is treated with excess $KI$ in acidic medium. The liberated iodine required $100$ mL of $0.1 N$ $Na_2S_2O_3$ for titration. <br> **Q1:** The total milliequivalents of $I_2$ liberated is:
Answer: A
💡 Solution & Explanation
**Step 1:** In an iodometric titration, meq of $I_2$ liberated = meq of $Na_2S_2O_3$ used. <br>**Step 2:** Meq Hypo = $N \times V (\text{mL}) = 0.1 \times 100 = 10$. <br>**Step 3:** Therefore, meq of $I_2$ = 10.
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