Question 1 What is meant by rusting of iron? State two conditions necessary for rusting of iron? How rusting damages iron objects? Question 2 What happens when an iron nail is kept immersed in copper sulphate solution? Question 3 What happens when baking soda is added to vinegar? Give its chemical reaction? Question 4 What happens when carbon dioxide is passed through … [Read more...] about Chemical Changes
galvanisation
Corrosion
Question 1 Define the term corrosion? Question 2 What is meant by rusting of iron? Question 3 State the conditions necessary for rusting of iron? Question 4 State the ways to prevent the rusting of iron? Question 5 Name the metal used for galvanising iron? Question 6 Why copper objects lose their shine after sometime? Question 7 Why silver articles became … [Read more...] about Corrosion