What are some indicators of rusting? Check all that apply. production of light color change formation of a solid formation of a gas

Change of colour

Change of state

Explanation:

Ferroxyl indicator can be used to show the process of rusting. When iron atoms begin to rust, they lose electrons to form iron ions. Ferroxyl indicator turns blue in the presence of iron ions. This shows that rusting has begun, even if there is no reddish brown rust showing on the surface of the iron.