Is a volcano classed as a mountain?

Answer 1

Some are, but not all. It depends on the height to which they grow after many eruptions. Some volcanoes are only hills with gentle slopes.
Technically yes it's a type of mountain but most say no

Answer 2

Yes, a volcano is typically classified as a type of mountain. Volcanoes form when magma, ash, and gases erupt onto the Earth's surface, building up in layers over time to create a cone-shaped structure. While many mountains are formed through tectonic processes, volcanoes are specifically associated with volcanic activity.