Question

Green vitriol is formed by :

• A. $ FeS_{2}+H_{2}O+O_{2}$
• B. $ FeS_{2}+H_{2}O+CO_{2}$
• C. $ FeS_{2}+CO+CO_{2}$
• D. $ FeS_{2}+CO$

Answer 1

Answer: (A)

Green vitriol is formed by the oxidation of iron pyrites $\left( Fe _{2}\right.$ ) in the presence of air and water.
$\underset{\text{pyrites}}{2 FeS _{2}}+2 H _{2} O +7 O _{2} \longrightarrow \underset{\text{green vitriol}}{2 FeSO _{4}}+2 H _{2} SO _{4}$