The color of Mohr's salt is :
As we learnt in
Pseudoalums -
Double sulphates of divalent ions and trivalent ions, which are not isomorphous with alums
- wherein
Mohr's salt or Ammonium iron (II) sulphate is green in colour.
Option 1)
This option is incorrect
Option 2)
This option is correct
Option 3)
This option is incorrect
Option 4)
This option is incorrect