1.

The oxide of a metal ‘A’ (used to make utensils) reacts with both acids and bases to form salt and water. a. Name the metal ‘A’ b. What is the name given to such oxides? c. Write the chemical equation for the reaction when exposed to air and when the product is dissolved in water.

Answer»

The oxide of some metal can react with both acid and base to FORM salt and WATER.To react with both acid and base, is a character of an AMPHOTERIC oxide.An amphoteric oxide is an oxide which can react with both acids as well as bases to PRODUCE salt and water.The two most common amphoteric oxides known are aluminium oxide and zinc oxide.As it is given that the metal is used to make utensils.Hence, a. Aluminium, as it is an amphoteric oxide as well as is used in making utensils.b. The name given to two such oxides is "amphoteric oxides."c. The equation equation when the metal reacts with OXYGEN in air is is:-4Al + 3O2 —> 2Al2O3The reaction when product is dissolved in water is:-Al2O3 + H2O —> No reaction



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