Trans-effect (a kinetic phenomenon) indicates the labilisation at the trans-position during the nucleophilic substitution.
The ligand which can weaken its trans bond more is considered to have its more trans influence. Trans-effect series :
`CN^(-),COgtH^(-) gt Ph^(-) gt NO_(2)^(-),I^(-) gt Br^(-) gt Cl^(-) gt NH_(3) gt OH^(-) gt H_(2)O`
`[PtCl_(4)]^(2-) overset(NH_(3))underset(2 eq.) to "products"` :
Trans-effect (a kinetic phenomenon) indicates the labilisation at the trans-position during the nucleophilic substitution.
The ligand which can weaken its trans bond more is considered to have its more trans influence. Trans-effect series :
`CN^(-),COgtH^(-) gt Ph^(-) gt NO_(2)^(-),I^(-) gt Br^(-) gt Cl^(-) gt NH_(3) gt OH^(-) gt H_(2)O`
`[PtCl_(4)]^(2-) overset(NH_(3))underset(2 eq.) to "products"` :
The ligand which can weaken its trans bond more is considered to have its more trans influence. Trans-effect series :
`CN^(-),COgtH^(-) gt Ph^(-) gt NO_(2)^(-),I^(-) gt Br^(-) gt Cl^(-) gt NH_(3) gt OH^(-) gt H_(2)O`
`[PtCl_(4)]^(2-) overset(NH_(3))underset(2 eq.) to "products"` :
A
`100 % cis-[Pt(NH_(3))_(2)Cl_(2)]`
B
`100 % trans-[Pt(NH_(3))_(2)Cl_(2)]`
C
Mixture of diastereomers with % trans `gt` % cis
D
Mixture of diastereomers with % cis `gt` % trans
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The correct Answer is:
A
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The bond angle follows the order: NH_(4)^(+) gt NH_(3) gt NH_(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 :
Knowledge Check
Trans-effect (a kinetic phenomenon) indicates the labilisation at the trans-position during the nucleophilic substitution. The ligand which can weaken its trans bond more is considered to have its more trans influence. Trans-effect series : CN^(-),COgtH^(-) gt Ph^(-) gt NO_(2)^(-),I^(-) gt Br^(-) gt Cl^(-) gt NH_(3) gt OH^(-) gt H_(2)O [Pt(NH_(3))_(4)]^(2+) overset(Cl^(-)underset(2eq.) to "products" :
Trans-effect (a kinetic phenomenon) indicates the labilisation at the trans-position during the nucleophilic substitution. The ligand which can weaken its trans bond more is considered to have its more trans influence. Trans-effect series : CN^(-),COgtH^(-) gt Ph^(-) gt NO_(2)^(-),I^(-) gt Br^(-) gt Cl^(-) gt NH_(3) gt OH^(-) gt H_(2)O [Pt(NH_(3))_(4)]^(2+) overset(Cl^(-)underset(2eq.) to "products" :
A
`100 % cis-[Pt(NH_(3))_(2)Cl_(2)]`
B
`100 % trans-[Pt(NH_(3))_(2)Cl_(2)]`
C
Mixture of diastereomers with % trans `gt` % cis
D
Mixture of diastereomers with % cis `gt` % trans
Trans-effect (a kinetic phenomenon) indicates the labilisation at the trans-position during the nucleophilic substitution. The ligand which can weaken its trans bond more is considered to have its more trans influence. Trans-effect series : CN^(-),COgtH^(-) gt Ph^(-) gt NO_(2)^(-),I^(-) gt Br^(-) gt Cl^(-) gt NH_(3) gt OH^(-) gt H_(2)O [Pt(NH_(3))_(4)]^(2+) overset(Cl^(-))underset(2eq.) to "products" :
Trans-effect (a kinetic phenomenon) indicates the labilisation at the trans-position during the nucleophilic substitution. The ligand which can weaken its trans bond more is considered to have its more trans influence. Trans-effect series : CN^(-),COgtH^(-) gt Ph^(-) gt NO_(2)^(-),I^(-) gt Br^(-) gt Cl^(-) gt NH_(3) gt OH^(-) gt H_(2)O [Pt(NH_(3))_(4)]^(2+) overset(Cl^(-))underset(2eq.) to "products" :
A
`100 % cis-[Pt(NH_(3))_(2)Cl_(2)]`
B
`100 % trans-[Pt(NH_(3))_(2)Cl_(2)]`
C
Mixture of diastereomers with % trans `gt` % cis
D
Mixture of diastereomers with % cis `gt` % trans
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^(-) The product formed at anode and cathode, when dilute H_(2)SO_(4) is electrolysed are :
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^(-) The product formed at anode and cathode, when dilute H_(2)SO_(4) is electrolysed are :
A
`SO_(2),H_(2)`
B
`SO_(3),H_(2)`
C
`H_(2)S_(2)O_(8),H_(2)`
D
`O_(2),H_(2)`
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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^(-) The product formed at anode and cathode, when dilute H_(2)SO_(4) is electrolysed are :
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 :
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 :
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 aqueous solution of cupric bromide is electrolyzed the product obtained at cathode will be :