Hello Students are looking for Assertion and Reason Questions Class 8 Science Chapter 14 Chemical Effects of Electric Current, If yes here we Net Explanations have given Assertion and Reason MCQ for 8th Class Science Chapter 14.
Solved CBSE Class 8 Science Chapter 14 Assertion and Reason Questions – Chemical Effects of Electric Current. Here we (Net Explanations) working very hard to providing you with the Important Assertion Reason Questions for this Chapter.
Assertion and Reason Questions Class 8 Science Chapter 14 Chemical Effects of Electric Current
1.) ASSERTION : why the bulb glows when the electric current passes through it.
REASON : Due to the heating effect of current, the filament of the bulb gets heated to a high temperature and it starts glowing.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans -Option A
2.) ASSERTION :The bubbles of a gas may be formed on the electrodes.
REASON : The passage of an electric current through a conducting solution causes chemical reaction.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans- Option A
3.) ASSERTION :If the current through a circuit is too weak the filament does not get heated sufficient and it does not glow .
REASON: Well, though a material may conduct electricity, it may not conduct it as easily as a metal. As a result, the circuit of the tester may be complete and yet the current through it may be too weak to make the bulb glow.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans- Option A
4.) ASSERTION :Tin cans, used for storing food, are made by electroplating tin onto iron.
REASON : Tin is more reactive than iron. Thus, food does come into contact with iron and is protected from getting spoilt.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans- Option C
5.) ASSERTION : Iron is used in bridges and automobiles to provide strength.
REASON: A coating of zinc is deposited on iron to protect it from corrosion and formation of rust.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans- Option B
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Nice….
Satisfied by the assertion and reasoning questions..
I will give 3.5 star out of 5 star..
1 star is deducted because I think so that first we should select the answer after that you can show the answer…. one more thing is that there are so many ads…
Thank you…
But good experience…
Very useful for me a lot for my test
It’s good but there isn’t a lot of question so pls add more questions
☺️☺️