What is blue and green vitriol? Write its chemical name and some uses

Blue vitriol is copper sulfate (CuSO₄·5H₂O) and green vitriol is ferrous sulfate (FeSO₄·7H₂O).

Blue vitriol (Copper sulfate)

• Chemical formula: CuSO₄·5H₂O.
• Blue crystals.
• Uses: In agriculture as a fungicide, in laboratories, and in electroplating.

Green vitriol (Ferrous sulfate)

• Chemical formula: FeSO₄·7H₂O.
• Green crystals.
• Uses: In medicines for iron deficiency, in water treatment, and in dyeing industry.