Question

True or false
(a) Generally, non-metals react with acids.
(b) Sodium is a very reactive metal.
(c) Copper displaces zinc from zinc sulphate solution.
(d) Coal can be drawn into wires.
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Answer 1

Explanation:

a) Generally non-metal do not react with acids beacuse when a substance reacts with acid it provides electrons to the H+ ions but non-metals are themselves accepts electrons

b) Sodium is a metal that is there in the first group of the Periodic Table. ... It is a characteristic alkali metal and in its pure form, it reacts quite violently with air and water. It also tarnishes very easily in air and has a very low density

c) Copper is less reactive than zinc and so placed below zinc in the reactivity or electron affinity series of metals. A metal which 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) They are non-metals since non-metals are brittle and non ductile. So, they cannot be drawn into wires.

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Answer 2

Answer:

(a) Generally, non-metals react with acids.