CBSE Class 8 Science Chemical Effects of Electric Current

• Mam /sir  i had given a test and came across a question  Which of the following does not conduct electricity? copper alcohol dilute sulphuric acid vineger the ans said it was alcohol but viniger also doesnt conduct electricity . so shouldn 't there  be an option saying both B and D
• can you explain me Types of charges and their interaction please
• what is elecrolysis
• what is cell
• Draw a current diagrams on a dry cell connected to a ball through a switch. Mark the positive and negative terminal of the cell and the direction of flow a.electron b.conventional current
• define a cell
• Why electricity can pass through conducter, not by  insulator?? 
• What is electroplating? How will you carry out electroplating of copper in the laboratory. 
• Write short note on. Electroplating  
• Mention the components of the circuit of tester

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