Question

Why do all the metal pieces get polished before the experimemt ?

Answer 1

all the metal pieces get polished before the experimemt Because most of the metal react with oxygen from the environment to form metal oxide which leads to discontinity in the circuit so metal get polish before using it.
I hope this helps u

Answer 2

QWhy do all the metal pieces get polished before the experimemt?

Ans》Some metals like Aluminium, zinc , magnesium etc. when comes in contact with air forms a thin oxide layer on its surface.
I reduces the efficiency of reaction process.
Hence it is polished brfore experiment.

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