- APrimary
- BSecondary
- CPrimary and Secondary
- ✓Tertiary
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${\left[\mathrm{V}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}, \quad\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}, \quad\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},}$
${\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}}$
[Given atomic numbers: $\mathrm{V}=23, \mathrm{Cr}=24, \mathrm{Fe}=26$,
$\mathrm{Ni}=28, \mathrm{Cu}=29]$
[Note : Ignore the pairing energy]
$1.\,Zn|Z{n^{2 + }}\,\left( {1\,M} \right)||C{u^{2 + }}\left( {1\,M} \right)|Cu$
$2.\,Zn|Z{n^{2 + }}\,\left( {0.1\,M} \right)||C{u^{2 + }}\left( {1\,M} \right)|Cu$
$3.\,Zn|Z{n^{2 + }}\,\left( {1\,M} \right)||C{u^{2 + }}\left( {0.1\,M} \right)|Cu$
are represented by $E_1,\,E_2,\,E_3$. Which of the following statement is true?
