\(\left[\mathrm{NiCl}_4\right]^{2-}, \rightarrow\) paramagnetic, \(\mathrm{sp}^3\) hybridisation, number of unpaired electrons \(=2\)
$CoCl _{3} . xNH _{3}+ AgNO _{3}( aq ) \rightarrow$
જો $AgCl$ ના બે સમતુલ્યો અવક્ષેપિત થાય તો $x$ નું મૂલ્ય $\dots\dots$ થશે.
$\mathrm{NO}_2^{-}, \mathrm{SCN}^{-}, \mathrm{C}_2 \mathrm{O}_4^{2-}, \mathrm{NH}_3, \mathrm{CN}^{-}, \mathrm{SO}_4^{2-}, \mathrm{H}_2 \mathrm{O}$.