Question

Tick the statements that are correct
1 All the minerals are not ores.
2 Most metals produce a ringing sound when struck.
3)Metallic oxides are acidic in nature.
4)Magnesium reacts with cold water to form hydrogen.
5)Copper gets corroded in the presence of carbon dioxide and water.
6)Most non-metallic solids are brittle.
7)Magnesium cannot displace copper from copper sulphate solution.​

Answer 1

Answer:

true

true

false

false

true

false

false