Question

What is green vitriol? Write its chemical formula.​

Answer 1

Answer:

Blue, or roman, vitriol is cupric sulfate; green vitriol—also called copperas, a name formerly applied to all the vitriols—is ferrous sulfate. ... White vitriol is zinc sulfate; red, or rose, vitriol is cobalt sulfate; and uranvitriol is a native uranium sulfate. Oil of vitriol is concentrated sulfuric acid

The formula for green vitriol is FeSo4. 7H2O.