Electrochemistry With Answers

Electrochemistry

Sr. # Questions Answers Choice
1 Which of the following changes wold typically lead to an incresse in he rate of electrolysis. Decreasing ghe concentration of the electrolyte Incressing the distance between the electrodes Decressing the surface area of the electrolytic cell Increasing the current passed though the electroytic cell
2 A positive value for the standared electrode potential of a metal ion metal half cell indicate that The metal is stong reducing agent The metal ion is redily oxidized The metal ion is redily reduced The metal will readily displace hydrogen from dilute acids.
3 The principle of measuring DO by Wrinkler's Method is based on. Iodimetry Iodometry Acid Bse titration Complexometry
4 The experimental determination of Avogadro's numebr through electrolysis typically involves measuring  The current and voltage applied The mass of the substance deposited or liberated by a konown charge The conductivity of the electrolytic solution The temperature changes duirng electrolysis
5 In an electrolysis exprement if a charge 96,500 Coluombs is passed trough a solution, the amount of substance liberated or deposited at the electrode is directly relatd to. Mass numebr of the ion One mole of electrons being transferred Avogadro's nmber of ions being discharged Standrd electrode potentil of the metal iion
6 If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage. Decrease slowly Decrease repidly Does not change Drope to zero
7 If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have CuSO4 Solution Zn SO4 Solution Cu Ions Zn Solid
8 The salt brige allows tranfer of ........in Zn -Cu voltaic cell SO4 Ions Zn2 ions Both  None of thes
9 Which of the following metals would most raadily displace hydrogen gas from dilute acids. Copper Silver Magnesium Platinum
10 The activity series of meals arranges metals in order of their. Atomic mass Density Ease of oxidation Ease of reduction 
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