Cu2Cl2 and CuCl2 in aqueous medium

Question

Cu2Cl2 and CuCl2 in aqueous medium (A) CuCl2 is more stable than Cu2Cl2 (B) Stability of Cu2Cl2 is equal to stability of CuCl2 (C) Both are unstable (D) Cu2Cl2 is more stable than CuCl2

Tardigrade Admin · Accepted Answer

CuCl 2 is more stable than Cu 2 Cl 2. The size of Cu 2+ is smaller than Cu +. The hydration enthalpy depends on the size of the cation. Smaller the size of the cation more will be the hydration enthalpy. Hence, more will be stability.

Q. $C u_{2} C l_{2}$ and $C u C l_{2}$ in aqueous medium

$C u C l_{2}$ is more stable than $C u_{2} C l_{2}$

Stability of $C u_{2} C l_{2}$ is equal to stability of $C u C l_{2}$

Both are unstable

$C u_{2} C l_{2}$ is more stable than $C u C l_{2}$

$C u C l_{2}$ is more stable than $C u_{2} C l_{2}$ . The size of $C u^{2 +}$ is smaller than $C u^{+}$ . The hydration enthalpy

depends on the size of the cation. Smaller the size of the cation more will be the hydration enthalpy. Hence, more will be stability.

Q. Cu2​Cl2​ and CuCl2​ in aqueous medium

CuCl2​ is more stable than Cu2​Cl2​

Stability of Cu2​Cl2​ is equal to stability of CuCl2​