Explain the following:
List two important methods to prevent the process

Explain the following: A metal 'X' acquires a green colour coating on outer surface on exposure to air. (i) Identify the metal 'X' and name the process responsible for this change. (ii) Name and write chemical formula of the green coating formed on the metal. (iii) List two important methods to prevent the process.

Explain the process

Explain the following: Can we permanently prevent the rusting of an iron article by applying a layer of paint on its surface?

List the important poperties of enzymes.

Answer the following questions: Explain the different methods to prevent corossion of metals?

Answer the following questions: Write three methods of preventing rusting of iron?

Answer the given question : Name the two important stages in the process of obtaining metals from ores?

Answer the following : Explain the various methods for extinguish fires .

Write the following sets using the listing method : Letters in the word 'COMPLEMENT'