For colourless salts, the most fruitful test is the flame test, which proves the presence of three different cations. There are more colourless salts present than coloured salts. If a cation is coloured, you can skip the steps in between and go directly for the confirmatory test.ĭo not be confused if the salt is colourless. Most cations secrete a certain colour when mixed with other compounds. Make sure you correctly identify the colour of the cation. We provide here a small checklist and a table that will help you identify cations much more easily than your peers. Also, owing to academic reasons, there are a certain set of popular ions which are asked to be experimented upon. That is the reason it is impossible for students to test for each and every one of them. There are thousands of cations and anions which are there in nature and being discovered regularly. The order of finding each ion can also be swapped.īelow we provide a table that will help you conduct and write any practical experiment related to salt analysis class 12 with ease.Īim: To separate and identify the cation and anion present in the given inorganic salt.Īpparatus Needed: To be done by students. It is not mandatory that anions have to be found first. For example, if the cation found is Fe 3+ and the anion found is Cl -, then the final inorganic salt result will be FeCl 3. When both the cation and anion are obtained and identified, construct the chemical formula keeping in mind the valences of each ion. Once you find the group, take each cation of that group and perform positivity tests. Once you find the group, take each anion of that group and perform positivity tests.ĭo the same group-wise experiment for cations, as you did for anions. For most of this experiment, finding a wider group of ions is easier because, for groups, there is a common reagent against which a positive test result is obtained. Try to find out which anion group is present inside the salt. Procure a considerable amount of salt on which you want to conduct an experiment. If you were plagued until today with questions like ‘how to do salt analysis experiment class 12’, keep reading this article to get all your answers. Inorganic salts are separated into different ions with the help of different sorts of experiments done under laboratory conditions and putting the compounds under different distinct tests which confirm whether certain ions are present or not in the solution.įor both theory and practical examinations, class 12 chemistry practicals salt analysis is a very important topic.

This process is known via different names like qualitative analysis of inorganic salts or systematic qualitative analysis.

The segregation of different anions and cations and identification of the same in inorganic salts is known as salt analysis.

Pbco3 precipitate color