Correct statement among the following  is

(1) ….false …. Elements of group 7,8,9 cannot form Hydrides
(2)…true

$\begin{array}{l}{\mathrm{E}}_{{\mathrm{Pd}}^{+2}/\mathrm{Pd}}^{\mathrm{o}}>{\mathrm{E}}_{{\mathrm{H}}^{+}/\frac{1}{2}{\mathrm{H}}_2}^{\mathrm{o}}>{\mathrm{E}}_{{\mathrm{zn}}^{+2}/\mathrm{zn}}^{\mathrm{o}}\\ \therefore {\mathrm{H}}_2\mathrm{can}\mathrm{reduce} {\mathrm{Pd}}^{+2}\mathrm{but}\mathrm{not}{\mathrm{Zn}}^{+2}\end{array}$

(3)….false….. ${\mathrm{Na}}_2\left[{\mathrm{Na}}_4{\left({\mathrm{PO}}_3\right)}_6\right]\mathrm{is}\mathrm{calogon}$

(4) …false… Calgon forms soluble complexes with ${\mathrm{Ca}}^{+2}\&{\mathrm{Mg}}^{+2}$  which remain in the solution