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Detection of weak current flowing through liquid

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal Leave a Comment

LED

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

Ionic compounds

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal 1 Comment

Question 1 What are ionic compound? Question 2 What are covalent compounds? Question 3 Define chemical bond? Question 4 Why noble gases do not react? Question 5 What are ions? Question 6 How ions are formed? Question 7 What are cations.How they are formed? Question 8 Give example of cation formation? Question 9 What are anions? Question 10 How anions … [Read more...] about Ionic compounds

Ions

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal 2 Comments

Question 1 What are ions? Question 2 How an ion is formed? Question 3 How a cation is formed.Give example? Question 4 How an anion is formed.Give example? Question 5 What are simple ions.Give example? Question 6 What are complex ions.Give example? Question 7 What are ionic compounds? Question 8 Define formula unit of an ionic compound? Question 9 … [Read more...] about Ions

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