Q1-:Which of the following changes does not occur on
the passage of an electric current through a
solution causes chemical reaction?
(1) Formation of gas bubbles on the electrodes
(2) Deposition of metal on electrodes
(3) Changes of electrodes
(4) Change of the colour of the solution
Q2-:Which of the following changes does not occur on
the passage of an electric current through a
solution ?
(1) Formation of gas bubbles on the electrodes
(2) Deposition of metal on electrodes
(3) Changes of electrodes
(4) Change of the colour of the solution
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Answers
Answered by
33
Q1. (1) Formation of gas bubbles on the electrodes.
Q2. Change of colour in solution
How does an electric current causes chemical change?
The passage of an electric current through a conducting solution causes chemical reactions. As a result, bubbles of a gas may be formed on the electrodes. Deposits of metal may be seen on electrodes. Changes of colour of solutions may occur.
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Answered by
213
Q1. (2)
Q.2 (4)
What are the observable changes which happen to a solution when electric current passes through it?
When an electric current flows through the conducting solution, it causes a chemical reaction (or chemical change). These chemical reactions may produce following effects: i) Bubbles of gas/es may be formed on the electrodes.
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