# The formulae of Mohr salt is

$(a)\;FeSO_4.(NH_4)_2SO_4.6H_2O \\(b)\;Fe_2(SO_4)_3.(NH_4)_2SO_4.6H_2O\\(c)\; Fe_2(SO_4)_2.(NH_3)_2SO_4.6H_2O \\(d)\;FeSO_4.(NH_4)_3 SO_4.6H_2O$

The formulae of Mohr salt is $FeSO_4.(NH_4)_2SO_4.6H_2O$
Hence a is the correct answer.
answered Mar 12, 2014 by