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S-1:- Na(2)O lt MgO lt ZnO lt P(4)O(10) ...

S-1:- `Na_(2)O lt MgO lt ZnO lt P_(4)O_(10)` : acidic property
S-2:- `Na lt Si gt Mg gt Al` : First ionisation potential
S-3:- `F gt Cl gt Br` : Electron affinity.
S-:- `Te^(2-) gt I^(-) gt Cs^(+) gt Ba^(2+)` : Ionic size

A

TTTT

B

TTFT

C

TFFT

D

TFTT

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The correct Answer is:
B
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What are isoelectronic ions ? Account for the decrease in size of the following isoelectronic ions : O ^(2-) - gt F ^(-) gt Na ^(+) gt Mg ^(2+)

Find the total number of correct orders among the following. (a) Order of electron affinity : S gt O^(-) (b) Order of ionic radius: AI^(3+) lt Mg^(2+) lt O^(2-) (c) Order of electronegativity: Si lt P lt C lt N (d) Order of atomic radius: O lt C lt S lt Se (e) Order of second ionization energy: C lt N lt F lt O (f) Order of ionic radii : S^(2-) lt CI^(-) lt K^(+) lt Ca^(2+)

Electrolysis is an important technique for extraction of metals, and each ion of the solution needs a minimum voltage to get discharged and this value is expressed in terms of discharge potential. For some metal ions the discharge potentials follow the order given below : Li^(+) gt K^(+) gt Ca^(2+) gt Na^(+) gt Mg^(2+) gt Al^(3+) gt Zn^(2+) gt Fe^(2+) gt Ni^(2+) gt H_(3)O^(+) gt Cu^(2+) gt Hg_(2)^(2+) gt Ag^(+) gt Au^(3+) For some anions the discharge potentials are in the order : SO_(4)^(2-) gt NO_(3)^(-) gt OH^(-) gt Br^(-) gt I^(-) When conc. H_(2)SO_(4) is electrolysed with high current using Pt electrodes, the product obtained at anode is :

Electrolysis is an important technique for extraction of metals, and each ion of the solution needs a minimum voltage to get discharged and this value is expressed in terms of discharge potential. For some metal ions the discharge potentials follow the order given below : Li^(+) gt K^(+) gt Ca^(2+) gt Na^(+) gt Mg^(2+) gt Al^(3+) gt Zn^(2+) gt Fe^(2+) gt Ni^(2+) gt H_(3)O^(+) gt Cu^(2+) gt Hg_(2)^(2+) gt Ag^(+) gt Au^(3+) For some anions the discharge potentials are in the order : SO_(4)^(2-) gt NO_(3)^(-) gt OH^(-) gt Br^(-) gt I^(-) A mixture containing chlorides of sodium, calcium and zinc is electrolysed in presence f wate. The product obtained at cathode will be :

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