Chemistry
State why sulphuric acid was called – 'oil of vitriol'.
Sulphuric Acid
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Answer
Sulphuric acid was initially called 'oil of vitriol' because it was prepared by distilling green vitriol [FeSO4.7H2O] and hence the name – 'oil of vitriol' was given.
2FeSO4.7H2O ⟶ Fe2O3 + SO2 + SO3 + 14H2O
SO3 + 14H2O ⟶ H2SO4 + 13H2O
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