Question

A metal „X‟ acquires a green colour coating on its surface on exposure to air.

a) Identify the metal „X‟ and name the process responsible for this change.

b) Name and write the formula of green coating formed on metal.

c) List two important methods to prevent this process.

Answer 1

Hello mate,

Here is your answer,

a) Due to oxidation, the copper becomes green in exposure of air and it polished according to the color to prevent the oxidation.

b) Cu2(OH)2CO3 - basic copper carbonate

c) Alloying, galvanisation

HOPE THIS HELPS UU :)

AND STAY BLESSED.