Class 8 Science Chapter 14 MCQ (Multiple Choice Questions) of Chemical Effects of Electric Current updated for new academic session 2022-2023. These multiple choice objective quiz will help the students in the preparation of school tests and terminal exams. Prepare the entire chapter 14 of class 8 science using these objective questions with answers. All the questions are important as well as useful for a student of standard 8. These questions are prepared from the class 8 science chapter 14 NCERT Textbook only.
Class 8 Science Chapter 14 MCQ for 2022-2023
Class: 8 | Science |
Chapter: 14 | Chemical Effects of Electric Current |
Contents: | MCQ Online Tests with Explanation |
MCQ Tests with Answers for Class 8 Science Chapter 14
Which of the following statement is or are correct?
In an activity to check the conduction of electricity through two liquids labelled A and B by using a bulb, it is observed that the bulb glows brightly for liquid B while it glows very dimly for liquid A.
Consider the following statements and choose the incorrect one:
Read the following sentences carefully, and choose the incorrect one:
In a science quiz competition, Payel is asked a question where she had to choose the statement which was/were correct?
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
Which of the following metals are produced by the electrolysis of their molten compounds?
Payal is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payal wants to take help from you:
When electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates:
Badal appeared in class test but he confused to know the correct statement. Would you help him to know that?
Which of the following compounds is manufactured by using the chemical effect of electric current?
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
Which of the following is a weak electrolyte?
In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?
In the last year examination of class VIII, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?
Electrolytes conduct electricity due to the movement of:
The chemical reaction brought about by an electric current may produce one or more effects. Choose the correct statements:
Consider the following statements and choose the correct one:
The decomposition produced by passing current through a conducting liquid is called:
In the purification of an impure metal by using the chemical effect of electric current or electrolysis, we should not take:
Which of the following can be electroplated with chromium?
In order to obtain a coating of silver metal on a flower vase made of copper, the electrolyte has to be:
Chemical effect of electric current is used in industries or factories for the different purposes. Choose the correct purposes:
The device which can be used to detect very small current flowing in an electric circuit is:
If plus sign (+) denotes the positive electrode and minus sign (-) denotes the negative electrode, then which of the following statement is correct for an iron spoon to be copper plated?
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