$\left[\mathrm{V}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$
[ આપેલ પરમાણુ ક્રમાંક : $\mathrm{V}=23, \mathrm{Cr}=24, \mathrm{Fe}=26, \mathrm{Ni}=28 \mathrm{Cu}=29$ ]
${ }_{23} \mathrm{~V}:-[\mathrm{Ar}] 3 \mathrm{~d}^3 4 \mathrm{~s}^2$
$\mathrm{~V}^{+j}:-[\mathrm{Ar}] 3 \mathrm{~d}^2, \mathrm{n}=2 \text { (even number of unpaired e) }$
${\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+} \rightarrow \mathrm{sp}^3 \mathrm{~d}^2}$
${ }_{24} \mathrm{Cr}:-[\mathrm{Ar}] 3 \mathrm{~d}^5 4 \mathrm{~s}^1$
$\left.\mathrm{Cr}^{+2}:-[\mathrm{Ar}] 3 \mathrm{~d}^4, \mathrm{n}=4 \text { (even number of unpaired } \mathrm{e}^{-}\right)$
${\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+} \rightarrow \mathrm{sp}^3 \mathrm{~d}^2}$
$\mathrm{Fe}^{3+}:-[\mathrm{Ar}] 3 \mathrm{~d}^5 4 \mathrm{~s}^0$
$\mathrm{n}=5 \text { (odd number of unpaired } \mathrm{e}^{-} \text {) }$
${\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+} \rightarrow \mathrm{sp}^3 \mathrm{~d}^2}$
$\mathrm{Ni}:-[\mathrm{Ar}] 3 \mathrm{~d}^8 4 \mathrm{~s}^2$
$\mathrm{Ni}^{+3}:-[\mathrm{Ar}] 3 \mathrm{~d}^7, \mathrm{n}=3 \text { (odd number of unpaired } \mathrm{e}^{-} \text {) }$
${\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+} \rightarrow \mathrm{sp}^3 \mathrm{~d}^2}$
$\mathrm{Cu}:-[\mathrm{Ar}] 3 \mathrm{~d}^9 4 \mathrm{~s}^0$
$\mathrm{n}=1 \text { (odd number of unpaired } \mathrm{e}^{-} \text {) }$
List $- I$ | List $- II$ | ||
$(A)$ | $[Ag(CN)_2]^-$ | $1.$ | સમતલીય ચોરસ, અને $1.73\,B.M.$ |
$(B)$ | $[Cu(CN)_4]^{3-}$ | $2.$ | રેખીય અને શૂન્ય |
$(C)$ | $[Cu(CN)_6]^{4-}$ | $3.$ | અષ્ટફલકીય અને શૂન્ય |
$(D)$ | $[Cu(NH_3)_4]^{2+}$ | $4.$ | સમચતુષ્ફલકીય અને શૂન્ય |
$(E)$ | $[Fe(CN)_6]^{4-}$ | $5.$ | અષ્ટફલકીય અને $1.73\,B.M.$ |
(આપેલ : $h =6.63 \times 10^{-34} \,Js$ અને $c =3.08 \times 10^{8} \,ms ^{-1}$ )