JEE Main 2025 Chemistry question
A solution of aluminium chloride is electrolysed for 30 minutes using a current of 2A. The amount of the aluminium deposited at the cathode is . [Given : molar mass of aluminium and chlorine are 27 g mol⁻¹ and 35.5 g mol⁻¹ respectively, Faraday constant = 96500 C mol⁻¹].
Answer: (3)
Solution
w = (It/96500)×(27/3) = (2×1800×9)/(96500×3) = 0.336 g.