To determine the presence of anion and cation in the given salt
Experiment | Observation | Inference |
---|---|---|
Salt + Dilute H₂SO₄ | No reaction | Dilute H₂SO₄ group is absent |
Salt + Conc. H₂SO₄ | Vapours with vinegar-like smell evolve | CH₃COO⁻ may be present |
Confirmatory Tests | ||
Oxalic Acid Test Take pinch of salt on palm and pinch of oxalic acid and 2-3 drops of water and make a paste | Strong vinegar-like smell is obtained | Presence of CH₃COO⁻ is confirmed |
Ferric Chloride Test Salt Solution + FeCl₃ solution | Reddish-brown ppt is obtained | Presence of CH₃COO⁻ is confirmed |
Experiment | Observation | Inference |
---|---|---|
Salt solution + NaOH solution | White precipitate | Mg²⁺ may be present |
Confirmatory Test | ||
Magneson Test Salt solution + Magneson reagent + NaOH solution | Blue lake formation | Presence of Mg²⁺ is confirmed |
The given salt contains Mg²⁺ ions as cation and CH₃COO⁻ ions as anion. The salt is Mg²⁺CH₃COO⁻.