${\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},}$
${\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}}$

ટ્રાન્સ$-[Co(en)\left._{2} Cl _{2}\right]^{+}( A )$ અને સિસ$-[Co(en)$ $\left._{2} Cl _{2}\right]^{+}$ $(B).$
તેમના વિશે સાચા વિધાનો ક્યા છે: