Question

Identify the cationic and onionic radical in given unknown salt performing dry and wet test for cationic Radical and onionic radical OR IN a given unknown caloured inorganic Salt B identify cationic and anionic radical on the basis of the basic of dry and wet test

Answer 1

Suppose I had take a salt NaCl when the necessary exp are done i observed that the cation was Na+ and the anion was Cl-.

Answer 2

Dry and wet test to identify the cation and anion in a given inorganic salt

Explanation:

• If the inorganic salt is copper chloride. It is colored and has abeutiful green crystalline appearance.
• Following dry and wet tests can be performed to identify the constituent ions:

• Dry test deals with the identification of elements or group of elements present in a sample.  It analyses changes in color, melting points, odor, reactivity and boiling point.
• For eg: If the given salt is green, it may be due to $Ni^2^+ , Fe^2^+ ,Cu^2^+$, brown color can be due to $Fe^2^+$, blue color is also due to $Cu^2^+$. So we can infer the green color might be due to   $Cu^2^+$ ion.
• Further a flame test can be performed on the salt . If a bright green color is imparted to the flame by copper (II) chloride. The color may sometimes be white too due to brightness. So it can confirmed that cation is cation.
• Wet test uses reagents to identify the presence of any particular chemical in a given unknown solution. Silver nitrate test is an example. It is used to identify the presence of various anions.
• This test involves adding dilute $HNO_3$ to sodium carbonate extract till the effervescence stops and then a few drops of $AgNO_3$ solution is added in excess. If a curdy white $NH_4OH$ soluble precipitate is formed - It may be due to chloride anion.