Question

describe a chemical test to determine if zinc oxide is amphoteric chemical test to determine if zinc oxide is an acid anhydride

Answer 1

✌✌zinc is a ampoteric because it reacts with both acid and base ✌✌

in acid
zno + 2hcl ------> zncl2 + h2o

in base
zno + 2naoh + h2o -------> na2 + [zn(oh)4)


hope this helps...