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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A With increase in temperature vibration numrricals Kernal Cation increases and therefore, conduction decreases and hence, resistance of the metallic conductor increases. C Double salt on ionization gives more ions. B The resistance decreases with increasing numerixals. EduRev is like a wikipedia just for education and the Practice Questions Solved – Electrochemistry, Class 12, Chemistry images and diagram are even better than Byjus!

During the same period The electrolysis of Ni NO 3 2 in presence of Ni electrode will bring in following changes: What do I get? If equal volumes of solution A and B are mixed, what will be the resistance of the mixture, using the same cell?

Calculate the percentage theoretical yield of NaOH obtained. What will be the molarity of solution if nickel electrodes are used? On what factors does the value of slope depend? Since, the value of cell potential is positive, the reaction will proceed spontaneously in forward direction. In case of metallic conduction – A The resistance increases with increasing temperature B The resistance decreases with increasing temperature C The flow of currnet does not generate heat D The resistance is independent of the length of electrolytic conductor Sol.

In case of metallic conduction.

### Solved Examples On Electrochemistry – Study Material for IIT JEE | askIITians

Also calculate the equilibrium constant of the reaction. Ellectrochemistry and Miquelon St. Download EduRev app here for Class 12 preparation. The emf of the cell is A 0. If the numericala masses of X and Y are in the ratio of 2: What mass of Ni is deposited at the cathode?

Calculate [H ] at positive electrode. Get Free Sample Now. Q coulomb deposits Zn s Cu 2 aq Zn 2 aq Cu sii Determine the slope of the graph. A current of 3. Calculate solubility product of AgI. When equal volume of A and B are mixed, the volume becomes double. Double salt on ionization gives more ions.

The cathodic reactions in the cells are respectively. By continuing, I agree that I am at least 13 years old and have read and agree to the terms of service and privacy policy. B atomic weight 27 and C atomic weight 48 were electrolysed under identical condition electrochemistrt the same quantity of electricity.

Electrohemistry the volume of the solution remains constant during electrolysis. The negative electrode is in contact with a solution of 10 -6 M H ion. Calculate the degree of dissociation of NaCl solution Sol.

The ratio in mol in which the metals Ag, Ni and Cr will be deposited is. Some half cell reactions and their standard potentials are given below: As given, Cell I: The emf of the numericsls is.

Find out the conc. The emf of this cell is found to be 0.

This is your solution of Practice Questions Solved – Electrochemistry, Class 12, Chemistry search giving you solved answers for the same. The cell voltage will be. D The resistance is independent of the length of electrolytic conductor. The standard electrode potential of cell is.

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

It has gotten views and also has 4. Match experimental value with the theoretical value. The molarity of the solution will, thus, remain unaffected. The ratio in mol in which the metals Ag, Ni and Cr will be deposited is- A 1: If ionic conductances of Na and Cl – ions at the same temperature are The concentration of CuSO 4 left in electrochemistrg is.

Density of silver is The cell voltage will be A 2.