Which of the following statements is not corr | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) In aqueous solution,$Cu^{2+}$ is more stable than $Cu^{+}$ due to its much more negative hydration enthalpy,which compensates for the second ioniz

Vedclass · Accepted Answer

Both $Cu^{+}$ and $Cu^{2+}$ are stable with $F^{-}$.

Vedclass · Answer

(D) In aqueous solution,$Cu^{2+}$ is more stable than $Cu^{+}$ due to its much more negative hydration enthalpy,which compensates for the second ionization enthalpy of copper.$Cu^{2+}$ has a $3d^9$ configuration (one unpaired electron),making it paramagnetic,while $Cu^{+}$ has a $3d^{10}$ configuration (no unpaired electrons),making it diamagnetic.$Cu^{2+}$ compounds are generally blue due to $d-d$ transitions,while $Cu^{+}$ compounds are colourless due to the filled $d$-subshell.$Cu^{+}$ is unstable in aqueous solution and undergoes disproportionation into $Cu$ and $Cu^{2+}$.Therefore,the statement that both $Cu^{+}$ and $Cu^{2+}$ are stable with $F^{-}$ is incorrect,as $Cu^{+}$ is generally unstable in aqueous environments.

Which of the following statements is not correct about $Cu^{2+}$ and $Cu^{+}$?

Similar Questions

Potassium manganate $(K_2MnO_4)$ is not formed in which of the following reactions?

Identify the correctly matched pairs:
$(i)$ $TiO_2$ - pigment industry
$(ii)$ $MnO_2$ - dry battery cells
$(iii)$ $Cu/Ni$ alloy - $UK$ 'copper' coins

Identify the factor responsible for the colour of transition metal compounds.

Sodium chromate,$Na_2CrO_4$ is made commercially by

Alkaline oxidative fusion of $MnO_2$ gives $A$ which on electrolytic oxidation in alkaline solution produces $B$. $A$ and $B$ respectively are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module