What type of isomers are the following
(a) `[Mn(CO)_(5)(SCN)]` and `[Mn(CO)_(5)(NCS)]`
(b) `[Co(en)_(3)][Cr(CN)_(6)]` and `[Cr(en)_(3)][Co(CN)_(6)]`

Explanation

The given complexes are linkage is isomers since these complexes have ambidentate ligand viz `SCN^(Θ)` ion
(b) The given coplex compounds are coordination isomers since each of them contains complex cation and complex anion as shown below and these complex compounds can be obtained by interchanging the ligands present in complex cation and complex anion

( c) These are ionisation isomers since they give different ions in aqueous solution as shwn below

(I) gives `SO_(4)^(2-)` ions and (II) gives `NO_(3)^(Θ)` ions Complex cations given by them are also different Due to the production of `SO_(4)^(2-)` ions (I) gives a white precipitate of Ba`SO_(4)` with `BaCI_(2)` sloution On the other hand (II) give the test pf `NO_(3)^(Θ)` ions
(d) These compounds are hydrate isomers since they contain different number of `H_(2)O` molecules inside and outside coordination sphere

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The given complex compounds are coordination isomers since each of them contains complex cation and complex anion as shown below and these isomers can be obtained by interchanging thire ligands

The given complex compounds are ionisation isomers since they give different ions in aqueous solution as shown below
(I) gives `CI^(Θ)` ions and (II) gives `Br^(Θ)` ions (I) gives white precipitate of AgCI with `AgNO_(3)` solution On the other hand (II) gives yellow precipitate of `AgBr` with `AgNO_(3)` solution .