MOCK • NCERT Class 8Medium

NCERT Class 8 Science Chapter 11 Chemical Effects of Electric Current Test Mock Test

This free online test covers Chapter 11, Chemical Effects of Electric Current, from the NCERT Class 8 Science textbook. The 30 questions are written directly from the chapter — definitions, processes, worked examples and the points the book italicises — so a score here tells you how much of the chapter actually stuck, not how well you guess. Each answer carries an explanation that says why the right option is right and why the other three fail, which is where most of the learning happens. Attempt it after your first read of the chapter, then again before the exam. There is no negative marking, and you can review the full solution the moment you submit.

Duration

30 mins

Questions

30 MCQs

Total Marks

30 pts

Negative

0 per wrong

Topics Covered in This Paper

Science
30 Qs100%

Sample Questions

Q1.Materials which allow electric current to pass through them easily are described in the chapter as:

  • AElectrodes
  • BPoor conductors of electricity
  • CGood conductors of electricity
  • DSolutions of acids, bases and salts

Q2.Before using a tester on liquids, the chapter says the free ends of the tester should be joined together for a moment in order to:

  • ACheck whether the tester is working, since the completed circuit should make the bulb glow
  • BCharge the cells of the battery before the test
  • CClean the ends of the tester of any residue
  • DWarm the filament of the bulb so it lights more easily

Q3.Why may the bulb of a tester fail to glow even when the liquid being tested does conduct electricity?

  • AThe circuit is broken whenever a liquid is used in place of a solid
  • BThe current may be too weak to heat the filament enough to make it glow
  • CLiquids reverse the direction of the current, so the bulb cannot light
  • DThe bulb glows only when the two ends of the tester touch each other

Before you begin

6 quick notes

The test will auto-submit when the timer runs out.

Each correct answer carries +1 marks.

Each wrong answer carries -0 marks.

You can flag questions to review later.

Do not switch tabs during the test.

Your progress is auto-saved.

Disclaimer: The questions provided here are extracted and digitized from previous year papers using automated processes. They may contain typographical errors, formatting issues, or minor variations from the actual examination paper. While we have done our best to verify the accuracy of the official answer keys, discrepancies may occasionally exist. Please refer to the official commission website for the most authentic paper.

Timer starts immediately and keeps running even if you close the tab. Make sure you have 30 uninterrupted minutes.

FAQ

Frequently asked questions

Frequently Asked Questions

How many questions are in the NCERT Class 8 Science Chapter 11 Chemical Effects of Electric Current Test mock test?
This paper has 30 multiple-choice questions carrying 30 marks in total, to be attempted in 30 minutes.
Is the NCERT Class 8 Science Chapter 11 Chemical Effects of Electric Current Test mock test free to attempt?
Yes. You can attempt the full paper online for free on AI Test Planet, and see your score and correct answers immediately after submitting.
Does this paper have negative marking?
No, there is no negative marking on this paper, so an attempted guess costs you nothing.
Are solutions and explanations available?
Yes. After you submit, every question shows the correct answer with a step-by-step explanation, along with a topic-wise breakdown of your performance.