Mark ‘T’ if the statement is true and ‘F’ if it is false.

1. Generally, non-metals react with acids. ( )
2. Sodium is a very reactive metal. ( )
3. Copper displaces zinc from zinc sulphate solution. ( )
4. Coal can be drawn into wires. ( )

(a) False

When a substance reacts with acid it provides electrons to the H+ ions but non-metals accept electrons by themselves. Hence, non-metals normally do not react with dilute acids.

(b) True

(c) False

Copper is less reactive than zinc and so placed below zinc in the reactivity or electron affinity series of metals. A metal that is less reactive, cannot displace a more reactive metal from a solution of its salt. Hence, copper cannot displace zinc from its salt solution.

(d) False

Coal is a hard substance that is mainly composed of carbon element which is non-metal. Since coal is non-metal, it lacks the property like malleability and ductility. So coal cannot be drawn into wires and sheets.