Metal X reacts with cold water and gives off a gas. Zinc can displace metal Y from a solution of its salts. The carbonate of metal Z does not dissolve. Which metals could X, Y and Z be?
- AX: sodium; Y: magnesium; Z: sodium
- BX: sodium; Y: copper; Z: copper
- CX: copper; Y: magnesium; Z: copper
- DX: sodium; Y: copper; Z: sodium