Q44. lectronic configuration of $\mathrm { Cu } ( \mathrm { II } )$ is $3 \mathrm {~d} ^ { 9 }$ whereas that of $\mathrm { Cu } ( \mathrm { I } )$ is $3 \mathrm {~d} ^ { 10 }$. Which of the following is correct? (1) Stability of $\mathrm { Cu } ( \mathrm { I } )$ and $\mathrm { Cu } ( \mathrm { II } )$ depends on nature (2) $\mathrm { Cu } ( \mathrm { II } )$ is more stable of copper salts (3) $\mathrm { Cu } ( \mathrm { I } )$ and $\mathrm { Cu } ( \mathrm { II } )$ are equally stable (4) Cu (II) is less stable
Q44. lectronic configuration of $\mathrm { Cu } ( \mathrm { II } )$ is $3 \mathrm {~d} ^ { 9 }$ whereas that of $\mathrm { Cu } ( \mathrm { I } )$ is $3 \mathrm {~d} ^ { 10 }$. Which of the following is correct?\\
(1) Stability of $\mathrm { Cu } ( \mathrm { I } )$ and $\mathrm { Cu } ( \mathrm { II } )$ depends on nature\\
(2) $\mathrm { Cu } ( \mathrm { II } )$ is more stable of copper salts\\
(3) $\mathrm { Cu } ( \mathrm { I } )$ and $\mathrm { Cu } ( \mathrm { II } )$ are equally stable\\
(4) Cu (II) is less stable