16 Questions
What is the branch of science that deals with the transformation of chemical energy into electrical energy and vice versa?
Electrochemistry
In electrolysis, which electrode is connected to the positive pole of the battery?
Anode
What is the flow of electrons across the boundary followed by a chemical reaction known as?
Electrolysis
In an electrolytic cell, which electrode is connected to the negative pole of the battery?
Cathode
What does electrochemistry deal with?
Relationship between electrical and chemical energy
What is the term for the chemical decomposition of electrolytes caused by direct current in electrolysis?
Electrolysis
What happens at the cathode during the electrolysis of molten NaCl using inert electrodes?
Na deposits on the cathode
What occurs at the anode during the electrolysis of molten NaCl using inert electrodes?
Cl2 gas is released at the anode
What happens at the cathode during the electrolysis of aqueous NaCl solution?
H2 gas is released at the cathode
What occurs at the anode during the electrolysis of aqueous NaCl solution?
Cl2 gas is released at the anode
What is found to be same before and after electrolysis during the electrolysis of aqueous AgNO3 solution?
The concentration of AgNO3
At which electrode does water undergo oxidation to liberate O2 during electrolysis of salts with NO3- or SO42- ions in aqueous solution?
Anode
What happens at the cathode during the electrolysis of aqueous solution of alkali or alkaline earth metals?
$H_2$ is liberated
What is released at the anode during electrolysis of pure H2SO4?
$O_2$ gas
What happens to the solution's color and pH during electrolysis of pure H2SO4?
$H_2SO_4$ increases and color decreases
What happens if further electrolysis is done in pure H2SO4?
$O_2$ is released at the anode and $H_2$ is released at the cathode
Test your knowledge of Electrochemistry chapter 6 contents including electrochemical cells, standard electrode potentials, Nernst equation, Electrochemical series, Faraday’s laws of electrolysis, and more with various levels of multiple-choice questions.
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