One important truth is that it is not balanced, because it has five chlorine atoms on the right side and only two chlorine atoms on the left. The equation should read:
2 FeCl2 + SnCl4 -> SnCl2 + 2 FeCl3. The equation also describes an oxidation-reduction reaction, in which iron ions are oxidized and tin ions are reduced.
function of SnCl2 is that it acts as a reducing agent to reduce FeCl3 to FeCl2 and function of HgCl2 is to oxidize SnCl2 to SnCl4. total iron is determined after reducing ferric iron to ferrous state.
When SnCl4 is heated, it undergoes thermal decomposition to form SnCl2 and Cl2 gases. The decomposition reaction is: 2 SnCl4 (s) -> 2 SnCl2 (s) + Cl2 (g)
SnCl2 is more stable than SnCl4 because of the lower oxidation state of tin (+2 in SnCl2 compared to +4 in SnCl4). The lower oxidation state of tin in SnCl2 leads to a higher stability due to less repulsion between the electrons. Additionally, the bond energy in the Sn-Cl bonds of SnCl2 is stronger than that in SnCl4, contributing to its stability.
The oxidation number of Sn changes from +4 in SnCl4 to +2 in SnCl2, resulting in a decrease of 2.
There are two main products of tin and chlorine, SnCl2 and SnCl4.
The halides in higher oxidation state posses high charge and are smaller in size as compared to the lower oxidation state halides.Thus, in higher oxidation halides the charge/radius ratio is higher which contribute to the increase in polarisation and consequently these are more covalent.(--AK)
Tin (Sn) shows two oxidation states +2 and +4 so tin forms two types of chloride SnCl2 and SnCl4.
SnCl2 is solid because it has a higher melting point due to its crystal lattice structure, which is more stable in the solid state. SnCl4 is liquid at room temperature because it has weaker intermolecular forces between its molecules, allowing them to move more freely and thus exist in a liquid state.
A white precipitate of mercury(I) chloride is formed when a small amount of tin chloride SnCl2 is put into a solution of mercury(II) chloride (HgCl2); adding more SnCl2 turns this precipitate black as metallic mercury is formed.
The molecular geometry of SnCl4 is tetrahedral. This is because tin (Sn) has 4 bonding pairs of electrons and 0 lone pairs, leading to a symmetrical tetrahedral arrangement of the chlorine atoms around the tin atom.
0 in the elemental form. +2 and +4 in its compounds
2SnCl4 has 10 atoms. There are two molecules of the equation, each with 1 Sn atom and 4 CL atoms.