Chemistry - Complete s-block Question with Solution | TestHub

How many statements are correct ?

(i) The mobilities of alkali metal ions in aqueous solutions are : ${\mathrm{Li}}^{+}>{\mathrm{Na}}^{+}>{\mathrm{K}}^{+}>{\mathrm{Rb}}^{+}$

(ii) The order of the ionic character of the following chlorides is

${\mathrm{BeCl}}_2<MgC{l}_2<CaC{l}_2<SrC{l}_2<BaC{l}_2$

(iii) The reducing nature of alkaline earth metals follows the increasing order as

$\mathrm{Be}<Mg<Ca<Sr<Ba$

(iv) Berylium is not readily attacked by acid because of the presence of an oxide film on the surface of Be.

(v) ${\mathrm{BeCl}}_2$ has a dimeric structure in the solid state but a polymeric structure in the vapour state.

(vi) ${\mathrm{BeCO}}_3$ is kept in an atmosphere of ${\mathrm{CO}}_2$ since it is least thermally stable

(vii) Sodium hydroxide is produced on a large scale by the electrolysis of aqueous solution of NaCl using Hg as cathode