Question 20
Hydrogen, Oxygen and OxidesThe substance ZnO dissolves in sodium hydroxide solution and mineral acid solution to give soluble products in each case. ZnO is therefore referred to as
- A.an allotropic oxide
- B.an amphoteric oxide
- C.a peroxide
- D.a dioxide
Show the answer and explanation
Answer: B (an amphoteric oxide)
Explanation
An oxide that reacts with both acids and alkalis to form salts is amphoteric.