Which of the following is Mohr’s salt?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Ammonium iron sulphate
Mohr’s salt is the double salt ammonium iron(II) sulphate, \(\mathrm{FeSO_4\cdot(NH_4)_2SO_4\cdot6H_2O}\). It forms pale green crystals and is used in the laboratory in titrations with potassium permanganate.