Shiny Pokemon are exactly the same as others so lets say you have a shiny zubat like i do level it up and it will evolve to golbat and stay shiny! Keep leveling it up and it will become a crobat and still be shiny!
Chat with our AI personalities
yes they do
Yes.
If your Infernape is not shiny to begin with, it will not evolve into a shiny Pokemon.
YES
A Shiny Stone will evolve a Togetic into a Togekiss or a Roselia into a Roserade.