State whether the following statements are true or false? (a) All metals exist in solid form at room temperature. (b) Coal can be drawn into wires. (c) Non-metals react with dilute acids to produce hydrogen gas. (d) Sodium is a very reactive metal. (e) Copper displaces zinc from a zinc sulfate solution. (f) Rust formed on iron objects is basic in nature. (g) Non-metals react with water to form a gas which burns with a ‘pop’ sound.