Chemical Effects of Electric Current [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 7 of 12
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Question 1
Statement True-False▾
Does distilled water conduct?
Choices
Choice (4) | Response | |
---|---|---|
a. | False | |
b. | True | |
c. | None of the above | |
d. | All of the above |
Question 2
Question MCQ▾
LED is defined as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Light emitting diode | |
b. | Insulator | |
c. | Lead | |
d. | Electrode |
Question 3
Question MCQ▾
Chromium plating is found on:
Choices
Choice (4) | Response | |
---|---|---|
a. | Towel rails | |
b. | Car bumpers bicycle handlebars | |
c. | Bath tapes | |
d. | All a., b. and c. are correct |
Question 4
Question MCQ▾
Deposition of a metal over another metallic object is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Electrodes | |
b. | Electroplating | |
c. | Electrolysis | |
d. | Question does not provide sufficient data or is vague |
Question 5
Question MCQ▾
Terminals through which electric current passed are called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Insulators | |
b. | Conductors | |
c. | LED | |
d. | Electrode |
Question 6
Question MCQ▾
Why tin cans are used for storing food items:
Choices
Choice (4) | Response | |
---|---|---|
a. | Because tin is more reactive as compared to iron | |
b. | Because tin is less reactive as compared to iron | |
c. | It is a good conductor | |
d. | It is a good insulator |
Question 7
Question MCQ▾
Substances which allow the current to pass through them are:
Choices
Choice (4) | Response | |
---|---|---|
a. | Semi-Conductors | |
b. | Conductors | |
c. | Insulators | |
d. | Question does not provide sufficient data or is vague |