ANSWERS OF NUMERICAL PROBLEMS MUST END WITH PROPER. UNITS. • QUESTIONS . Differences between electrochemical reaction and electrolysis. Electrochemistry Problems. 1). Given the E° for the following half-reactions: Cu. +. + e. -. → Cu°. E°red = V. Cu. 2+. + 2e. -. → Cu°. E°red = V. What is E°. Ten things to know before working electrochemistry problems: 1. Oxidation- Reduction Reactions. Every electrochemical reaction must involve a chemical system.

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EduRev is like a wikipedia just for education and the Practice Questions Electdochemistry – Electrochemistry, Class 12, Chemistry images and diagram are even better than Byjus!

Assume the volume of the solution remains constant during electrolysis.

Worksheet – Electrochemistry Problems – AP level

Why do I need to sign in? What will be the molarity of solution at the end of electrolysis? Identify numericxls only incorrect statement regarding the quantitative estimation of aqueous Fe NO 3 2.

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The concentration of CuSO 4 left in solution is. A The resistance increases with increasing temperature. B The resistance decreases with increasing temperature. Download EduRev app here for Class 12 preparation. Practice Questions Solved – Electrochemistry, Class 12, Chemistry notes for Class 12 is made by best teachers who have written some of the best books of Class If ionic conductances of Na and Cl – ions at the same temperature are The oxidation state numericas the metal in the metal salt is: The standard electrode potential of cell is.


Continue with Google or Continue with Facebook. Find the molarity of Zn 2 after the deposition of Zn. Xpress Buy Xpress Buy.

B atomic weight 27 and C atomic weight 48 were electrolysed under identical condition using the same quantity of electricity. Calculate the degree of dissociation of NaCl solution Sol. Match experimental value with the theoretical value. Anode of electrolytic cell is the electrode at which de-electronation takes place whereas at cathode electronation is noticed. The electrolysis of Ni NO 3 2 in presence of Ni electrode will bring in following changes:.

Some half cell reactions and their standard potentials are given below: A current of 2. Do check out the sample questions of Practice Questions Solved – Electrochemistry, Class 12, Chemistry for Class 12, the answers and examples explain the meaning of chapter in the best manner.

If equal volumes of solution A and B are mixed, what will be the resistance of the mixture, using the same cell? What do I get? Negative value shows that the reaction will proceed from right to left, i.

Practice Questions(Solved) – Electrochemistry, Class 12, Chemistry

Find the ratio of the masses of SnCI2: A current of numerocals. When equal volume of A and B are mixed, the volume becomes double.

A Zn cannot replace hydrogen from acids B Zn is reducing agent. Calculate [H ] at positive electrode. The electrode reaction is: The electrolysis of Ni NO 3 2 in presence of Ni electrode will bring in following changes: Calculate solubility product of AgI.


The cathodic reactions epectrochemistry the cells are respectively. The equivalent conductivity of the salt at infinite dilution is. Since, the value of cell potential is positive, the reaction will proceed spontaneously in forward direction. The ratio in mol in which the metals Ag, Ni and Cr will be deposited is- A 1: What mass of Ni is deposited at the cathode? Register yourself for the free demo class from askiitians. Hence its conductance would be highest.

Thus molar ratio is: The equivalent conductivity of the salt at infinite dilution is- A ohm -1 cm 2 eq -1 B ohm -1 cm 2 eq -1 C 60 ohm -1 cm 2 eq -1 D ohm -1 cm 2 eq -1 Sol. A sec B sec C sec D sec Sol.

Also calculate the equilibrium constant of the reaction.

On what factors does the value of slope depend? Already Have an Account? A current of MnO 4 -and weakest reductant: The valencies of A, B and C respectively. Density of silver is If the atomic masses of X and Y are in the ratio of 2: Studying in Grade 6th to 12th? Thus coulomb charge means charge on N electrons where N in Av.