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
sulphur
Elements
Question 1 What is an element. Give few examples? Question 2 How many elements are known till today? Question 3 Name 2 elements which are liquid at room temperature? Question 4 What are the three groups into which elements can be classified? Question 5 Define the term malleable? Question 6 Define the term ductile? Question 7 Why Aluminium metal is used in … [Read more...] about Elements