Read and download free pdf of CBSE Class 8 Science Chemical Effects of Electric Current Assignment Set E. Get printable school Assignments for Class 8 Science. Standard 8 students should practise questions and answers given here for Chapter 14 Chemical Effects Of Electric Current Science in Grade 8 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 8 Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
Assignment for Class 8 Science Chapter 14 Chemical Effects Of Electric Current
Class 8 Science students should refer to the following printable assignment in Pdf for Chapter 14 Chemical Effects Of Electric Current in standard 8. This test paper with questions and answers for Grade 8 Science will be very useful for exams and help you to score good marks
Chapter 14 Chemical Effects Of Electric Current Class 8 Science Assignment
Q1. Do liquids also conduct electricity? Name two liquids which conduct electricity & two liquids which do not conduct electricity.
Q2. Name a device which glows even when a weak electric current passes through it.
Q3. Write full form of LED.
Q4. Which effect of electric current is utilized for detecting the flow of current through a solution:
a) When a torch bulb is used?
b) When a compass is used?
Q5. Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain.
Q6. When electric current is passed through acidified water, then hydrogen & oxygen are formed. What type of effect of current is illustrated by this statement?
Q7. State some of the characteristics of chemical changes brought about by the chemical effect of electric current.
Q8. Name the metal which is usually electroplated on car parts such as bumpers & bicycle handlebars made of steel.
Q9. An iron key is to be electroplated with copper. Draw a labeled sketch of the experimental set up used for this purpose.
Q10. Name two metals which are usually electroplated on cheaper metals for making jewellery (or ornaments).
Q11. You are required to do electroplating of copper on an iron object. Name the positive electrode (anode) & the electrolyte you will use for this purpose.
Q12. Write a short note on electroplating.
Q13. Why does compass needle show more deflection when you test sea water, compared to ordinary water?
Q14. Name a liquid which when poured in the beaker may cause magnetic needle to deflect. Name the possibilities if a bulb in tester does not glow (it is for sure that liquid is conducting).
Q15. What happens to the needle of a magnetic compass kept nearby when electric current is switched on in a wire? Why does this happen?
Q16. Iron is used in bridges & automobile to provide strength. Which metal is electroplated on iron to protect it from corrosion?
Q17. We should never handle electrical appliances with wet hands or while standing on a wet floor. Why?
Q18. When the free ends of a conductivity tester (made by using a battery connected to a wire wound around a compass) are dipped into the following solution, then in which solution or solutions the compass needle shows deflection. Solutions are: Lemon juice, Vinegar, Tap water, Vegetable oil, milk, Honey.
Q19. Why does an electric bulb glow when a current passes through it?
Click on link below to download CBSE Class 8 Science Chemical Effects of Electric Current Assignment Set E
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CBSE Class 8 Science Chapter 14 Chemical Effects Of Electric Current Assignment
We hope you liked the above assignment for Chapter 14 Chemical Effects Of Electric Current which has been designed as per the latest syllabus for Class 8 Science released by CBSE. Students of Class 8 should download and practice the above Assignments for Class 8 Science regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 8 Science practice sheet in Pdf. All questions have been designed for Science by looking into the pattern of problems asked in previous year examinations.
Assignment for Science CBSE Class 8 Chapter 14 Chemical Effects Of Electric Current
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Chapter 14 Chemical Effects Of Electric Current Assignment Science CBSE Class 8
All questions and their answers for the assignment given above for Class 8 Science have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 8 can rest assured that the best teachers have designed the questions of Science so that you are able to revise the entire syllabus if you do the assignments. Lot of MCQ questions for Class 8 Science have also been given in the worksheets and assignments for regular use. All study material for Class 8 Science students have been given on studiestoday.
Chapter 14 Chemical Effects Of Electric Current Assignment CBSE Class 8 Science
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CBSE Science Class 8 Chapter 14 Chemical Effects Of Electric Current Assignment
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