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
Metals and Non-metals
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
Uses of Non-Metals
Question 1 Name one non-metal which is used to preserve food materials? Question 2 Name one non-metal which is used to make electrodes of dry cell? Question 3 Name one non-metal which is used in the manufacture of sulphuric acid? Uses of Non-Metals 1) Hydrogen is used in the hydrogenation of vegetable oil to make vegetable ghee, manufacture of ammonia. 2) Liquid … [Read more...] about Uses of Non-Metals