Cuprous ion is colourless while cupric ion is coloured because
Both have half filled $p-$ and $d-$ orbitals
Cuprous ion has incomplete $d-$ orbitaland cupric ion has a complete $d-$ orbital
Both have unpaired electrons in the $d-$ orbitals
Cuprous ion has complete $d-$ orbital and cupric ion has an incomplete $d-$ orbital.
Identify incorrect statement
Triple degenerate $d-$ orbitals are exactly half-filled in
Which of the following statements are correct?
$(A)$ The $M ^{3+} / M ^{2+}$ reduction potential for iron is greater than manganese
$(B)$ The higher oxidation states of first row $d$ block elements get stabilized by oxide ion.
$(C)$ Aqueous solution of $Cr ^{2+}$ can liberate hydrogen from dilute acid.
$(D)$ Magnetic moment of $V ^{2+}$ is observed between $4.4-5.2\,BM$
Choose the correct answer from the options given below:
A copper salt is isomorphic with $ZnS{O_4}$, the salt will be
Which of the following is $NOT$ a characteristic of the transition elements in the series from scandium to zinc?