Why is Cu more stable in aqueous solution?

Stability depends on the hydration energy (enthalpy) of the ions when they bond to the water molecules. The Cu2+ ion has a greater charge density than Cu+ ion and thus forms much stronger bonds releasing more energy.

Why Cu2+ is more stable than Cu+?

In an aqueous solution, a Cu2+ ion is more stable than a Cu+ ion due to the fact that the Cu2+ ion has a high negative value of hydration enthalpy. Means that more energy is released when Cu2+ is dissolved in water than in the case of Cu+. Hence it’s more stable.

Which form is more stable in aqueous medium?

Stability to transition metal ion is directly proportional to the unpaired electron. The exactly half filled and completely filled d – orbitals are extra stable. So, Mn3+ ion is most stable in aqueous solution.

Why is Cu unstable?

This is because although energy is required to remove one electron from Cu+ to Cu2+, high hydration energy of Cu2+ compensates for it. Therefore, Cu+ion in an aqueous solution is unstable.

Why is Mo VI more stable than Cr VI?

Answer: (b, c) In d-block elements, for heavier elements, the higher oxidation states are more stable. Hence, Mo(VI) and W(VI) are more stable than Cr (VI).

Why is Cu not in aqueous solution?

(i) Copper (I) ion is not known in aqueous solution. (ii) Actinoids exhibit greater range of oxidation states than Lanthanoids. Due to more reduction electrode potential value of Cu+, it undergoes oxidation reaction quite feasible. Hence, the copper (I) ion is not known in aqueous solution.

Which is the most stable in aqueous solution?

Cr3+ ion is the most stable in aqueous solution on account of maximum crystal field stabilization energy.

Why is Cu+ ion unstable in an aqueous solution?

Therefore, Cu + ion in an aqueous solution is unstable. It disproportionates to give Cu 2+ and Cu. Cu + is unstable in aqueous solution while Cu 2+ is more stable. Stability in aqueous medium depends upon the hydration energy.

What is the stability of cu2co2 in aqueous solution?

Stability in aqueous conditions depends on the hydration energy of the ions when they bond to the water molecules (an exothermic process). The Cu2+Cu2 ion has a greater charge density than the Cu+Cu ion and so forms much stronger bonds releasing more energy.

Why is CuX2 more stable than CuX+ in aqueous conditions?

Stability in aqueous conditions depends on the hydration energy of the ions when they bond to the water molecules (an exothermic process). The CuX2 + ion has a greater charge density than the CuX + ion and so forms much stronger bonds releasing more energy.

What is the stability of ionic compounds in aqueous conditions?

Stability in aqueous conditions depends on the hydration energy of the ions when they bond to the water molecules (an exothermic process). The C u X 2 + ion has a greater charge density than the C u X + ion and so forms much stronger bonds releasing more energy.