Question 1 Distilled water does not conduct electricity? Why? Question 2 What substance can be added to distilled water in small amount to make it a good conductor of electricity. Why? Question 3 Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour. Explain? Question 4 Which is a better conductor of electricity : Drinking water … [Read more...] about Distilled, Tap, Sea and Rain Water
Chemical effect of electric current
Detection of Weak Current Flowing through Liquid
Question 1 Write the full form of LED? Question 2 Name a device which glows even when a weak electric current passes through it? Question 3 What is it advantage of using LED in testing the electrical conductivity of liquids? Question 4 Which effect of electric current is utilised for detecting the flow of current through a solution: (a) When a torch bulb is … [Read more...] about Detection of Weak Current Flowing through Liquid
Test for Conduction of Liquid
Question 1 Describe an activity to show that hydrochloric acid solution conduct electricity? Question 2 Vinegar is a sour liquid. State whether vinegar conduct electricity or not? Question 3 Describe an activity to show that sugar solution do not conduct electricity? Question 4 How will you show that alcohol does not conduct electricity? Take a small beaker. … [Read more...] about Test for Conduction of Liquid
Liquids Conduct Electricity
Question 1 What are good conductors of electricity? Give example? Question 2 What are bad conductors of electricity? Give example? Question 3 Do liquids conduct electricity? Question 4 What are electrolytes? Question 5 What are strong electrolytes. Give example? Question 6 What are weak electrolyte. Give example? Question 7 What is an electrode? Question 8 … [Read more...] about Liquids Conduct Electricity