A metal a , which is used in thermit process, when heated with oxygen gives an oxide b , which is amphoteric in nature. identify a and b . write down the reactions of oxide b with hcl and naoh.

A) a = Iron, b = Fe_3O_4; HCl: No reaction, NaOH: Fe(OH)_3
B) a = Aluminium, b = Al_2O_3; HCl: No reaction, NaOH: Al(OH)_3
C) a = Zinc, b = ZnO; HCl: ZnCl2, NaOH: Na2ZnO_2
D) a = Copper, b = CuO; HCl: CuCl2, NaOH: Cu(OH)_2