Question
As compared to lithium, sodium reacts quickly with water because
So $N_2O_5 > SO_2 > CO_2 > CO$
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$(I)\, [CrCl_2(NO_2)_2(NH_3)_2]^-$ $(II)\, [Co(NO_2)_3(NH_3)_3]$
$(III)\, [PtCl(NO_2)(NH_3 )(py)]$ $(IV)\, [PtBrCl(en)]$
$(I)\,\,\,-\,\,\,(II)\,\,\,-\,\,\,(III)\,\,\,-\,\,\,(IV)$

(Atomic no. $Ti = 22, V = 23, Cr = 24, Fe = 26$)