Arrange the following in increasing order as directed. `(a) (i) [CoCl_(3)(NH_(3))_(3)]," "(ii)[CoCl(NH_(3))_(5)]Cl_(2)," "(iii)[Co(NH_(3))_(6)]Cl_(3),

Monjur Alahi

Arrange the following in increasing order as directed.
`(a) (i) [CoCl_(3)(NH_(3))_(3)]," "(ii)[CoCl(NH_(3))_(5)]Cl_(2)," "(iii)[Co(NH_(3))_(6)]Cl_(3), " " (iv) [CoCl_(2)(NH_(3))_(4)]Cl`- Molar conductance
(b) `C,N,O,F` (halogen)-tendency of `sigma` donation.
( c) `Br^(-),S^(2-),NO_(2)^(-),CO,CN^(-),NH^(3),NO^(3)^(-)`-strength of ligands.


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Salim Ahmed Kawsar

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Correct Answer - `(a) i lt iv lt ii lt iii " " (b) X lt O lt N lt C " " ( c) Br^(-) lt S^(2-) lt NO_(3)^(-) lt H_(2)O lt NH_(3) lt NO_(2)^(-) lt CN^(-) lt CO`

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To find formulae of a compound if we titrate `NH_(3)` in the compound with standardized acid. `Cr(NH_(3))_(x)Cl_(3)(aq)+xHCl(aq)rarrxNH_(4)^(+)(aq)+Cr

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