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Metals and Non-metals

Conversion of ore into metal

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

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

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

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 … [Read more...] about Occurrence of Metals-concentration of ore

Covalent bond

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal 4 Comments

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

Last Updated on May 3, 2020 By Mrs Shilpi Nagpal 2 Comments

formation of sodium chloride

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 … [Read more...] about Ionic Bond

Uses of Non-metals

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

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

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