JEE Main 2024 Chemistry question
For the electro chemical cell M|M||X|X. If = 0.46 V and = 0.34 V. Which of the following is correct?
Answer: (C)
Solution
For M + X → M²⁺ + X²⁻: E°cell = 0.34 − 0.46 = −0.12 V (not spontaneous), so the reverse reaction M²⁺ + X²⁻ → M + X is spontaneous.