Is removing hand from hot kettle involuntary action?

Yes, removing your hand from a hot kettle is primarily an involuntary action. This response is part of a reflex arc, where sensory nerves detect the heat and send a signal to the spinal cord, which then triggers a rapid reaction to pull your hand away. While you may consciously decide to avoid touching hot objects in the future, the immediate withdrawal is an automatic response to protect your body from harm.