Question 1 What is meant by refining of metals? Question 2 Define the term electrolytic refining? Question 3 How will you refine copper by electrolytic refining? Refining The process of purifying impure metal is called refining of metal. The most important and most widely used method for refining impure metals is called electrolytic refining. Many metals like … [Read more...] about Refining
Class 10
Conversion of ore into Metal
Question 1 Name one ore of mercury and zinc? Question 2 Give the chemical formula of ore of iron and copper? Question 3 Name one metal which is extracted by reduction with carbon? Question 4 Name one metal which is extracted by electrolytic reduction? Question 5 Name one metal which is extracted by reduction with aluminium? Question 6 How is copper extracted from … [Read more...] about Conversion of ore into Metal
Occurrence of Metals-concentration of ore
Question 1 Why most of the metals do not occur as free elements? Question 2 What are minerals? Question 3 Define the term ore? Question 4 Define the term metallurgy? Question 5 Define the term extraction? Question 6 Name the three steps of metallurgy? Question 7 What is gangue? Question 8 What do you mean by concentration of ore? Occurrence of Metals Most … [Read more...] about Occurrence of Metals-concentration of ore
Covalent Bond
Question 1 Define covalent bond? Question 2 Why non-metals form covalent bond? Question 3 What is a single covalent bond. Give example? Question 4 What is a double covalent bond. Give example? Question 5 What is a triple covalent bond. Give example? Question 6 Give few properties of covalent compounds? Covalent bond The chemical bond formed by sharing of … [Read more...] about Covalent Bond
Ionic Bond
Question 1 Define the term ionic bond? Question 2 Explain the formation of sodium chloride by electron transfer? Question 3 Give few properties of ionic compounds? Question 4 Why ionic compounds do not conduct electricity in solid state? Ionic Bond Ionic bond is formed by transfer of electrons from one atom to another. In this one atom can donate electrons to achieve … [Read more...] about Ionic Bond