The standard electrode potential (M^ 3+ / M^ 2+ ) for V, Cr, Mn and Co are -0.26 ~V ,-0.4…
Chemistry · JEE Main · NTA Exams — Redox Reactions and Electrochemistry
The standard electrode potential \(\left(M^{3+} / M^{2+}\right)\) for V, Cr, Mn and Co are \(-0.26 \mathrm{~V},-0.4 \mathrm{lV},+1.57 \mathrm{~V}\) and \(+1.97 \mathrm{~V}\), respectively. The metal ions which can liberate \(\mathrm{H}_{2}\) from a dilute acid are (Jee Main 2023)
- \(V^{2+}\) and \(M n^{2+}\)
- \(C r^{2+}\) and \(\mathrm{CO}^{2+}\)
- \(V^{2+}\) and \(C r^{2+}\)
- \(M n^{2+}\) and \(\mathrm{Co}^{2+}\)
Answer
(C) V^ 2+ and C r^ 2+
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A metal having negative reduction potential when dipped in the solution of its own ions, has a tendency :
- What is the free energy change for the half reaction Li + + e – → Li? Given E _ Li ^ + / Li ^ =-3.0 ~V , F =…
- 108 g fairly concentrate solution of AgNO 3 is electrolyzed using 0.1 F of electricity. The weight of…
- Which of the following cannot function as an oxidising agent?
- If x is specific resistance (in S –1 cm) of the electrolyte solution and y is the molarity of the solution…
- When one coulomb of charge is passed through an electrolytic solution for one sec, the mass deposited on the…
- An electrolysis of a oxytungsten complex ion using 1.10 A for 40 min produces 0.838 g of tungsten. What is…
- A conductivity cell with two electrodes (dark side) are half filled with infinitely diluted aqueous solution…
More Redox Reactions and Electrochemistry questions · Browse all practice questions