The correct answer is B
Which chemical element is represented by the symbol "Fe" in the periodic table?
What type of glass is used in the manufacturing of cooking utensils?
Which element is used in pencil leads?
Which element dominates the Earth's crust by percentage?
The important ore of aluminium is-
Potassium Permanganate is used for purifying drinking water, because it –
Which of the following statements about the modern periodic table is NOT correct?
The function of quick lime in soda lime mixture is to
Galvanisation is a method of protecting iron from rusting by coating with a thin layer of .
Which fuel has the highest calorific value?
