Question

2. A reddish brown coloured metal X, used in electrical wires, when powdered and
heated strongly in open china dish, turns black.
a) Identify the metal X and the black coloured substance formed.
b) Name and define the kind of reaction involved.​

Answer 1

Answer:

Explanation:

2. A reddish brown coloured metal X, used in electrical wires- copper

a)black coloured substance-copper oxide