CBSE Class 8 Science Worksheet - Chemical Effect of Electric Current Part B. Revision worksheets, Sample papers, Question banks and easy to learn study notes for all classes and subjects based on CBSE and CCE guidelines. Students and parents can download free a collection of all study material issued by various best schools in India. The study material has been carefully compiled by the best teachers in India. The students should practice the questions database to get better marks in examination. Please refer to other links for free download of high quality study material. Based on CBSE and CCE guidelines. Based on the same pattern as released by CBSE every year. Study material for final/ term/ SA1/ SA2 Examinations conducted by various schools affiliated to Central Board of Secondary Education (CBSE) in India and abroad. CBSE Study material has been compiled to help students preparation which will helps the students to concentrate more in areas which carry more marks.
CHEMICAL EFFECTS OF ELECTRIC CURRENT
I. Write answer for the following as directly :
1. What is LED ?
2. Name a gas which burns with a pop sound.
3. Which electrode is connected to the negative terminal of a cell ?
4. Name the ions which are positively charged.
5. Name a device which is used for the electrolysis of water ?
6. Write a chemical equation for the electrolysis of water.
II Answer the following in 2 or 3 lines :
1. Define the following :
a) Electrolyte b) Cathode c) Anode d) Jons e) Voltameter
2. What is electroplating ?
3. Draw a neat diagram of voltameter and label it
4. Identify the following as electrolytes and non electrolytes :
a) dil HNo3 b) Benzene c) Petrol d) Zinc Chloride solution e) a solution of Naoh g) Ether h) Alcohol i) Common salt solution
5. State three uses of electrolysis.
III Define the following in detail :
1. Describe an experiment to show chemical effect of electric current.
2. Describe an experiment for the electroplating of an iron object with copper.
Please refer to attached file for CBSE Class 8 Science Worksheet - Chemical Effect of Electric Current Part B