**(A):** One mole of is oxidized by moles of in acidic medium. <br> **(R):** Equivalents of must be — Redox Reactions and Volumetric Analysis Chemistry Question
Question
**(A):** One mole of $Sn^{2+}$ is oxidized by $0.4$ moles of $MnO_4^-$ in acidic medium. <br> **(R):** Equivalents of $Sn^{2+}$ must be equal to equivalents of $MnO_4^-$.
Answer: A
💡 Solution & Explanation
**Assertion:** Meq $Sn^{2+} = 1 \times 2 = 2$. Meq $MnO_4^- = 0.4 \times 5 = 2$. Since meq are equal, the mole ratio is correct. Statement is true. <br>**Reason:** The Principle of Equivalence dictates that reagents always react in a $1:1$ ratio of their equivalents. This explains the mole ratio $1:0.4$.
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