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प्रश्न
Explain cationic complexes and anionic complexes of co-ordination compounds.
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उत्तर
1. Cationic complexes: A complex in which the complex ion carries a net positive charge is called a cationic complex.
Example: [Fe(H2O)6]Cl3, [Co(NH3)6]Cl3, [Ni(NH3)6]Cl2 are cationic complexes. This can be seen from the following reactions:
\[\ce{[Co(NH3)6]Cl3 <=> [Co(NH3)6]^{3+} + 3Cl-}\]
\[\ce{[Fe(H2O)6]Cl3 <=> [Fe(H2O)6]^{3+} + 3Cl-}\]
\[\ce{[Ni(NH3)6]Cl2 <=> [Ni(NH3)6]^{2+} + 2Cl-}\]
2. Anionic complexes: The complexes in which the complex ion carries a net negative charge are called anionic complexes.
Example: K4[Fe(CN)6], K[Ag(CN)2], K2[HgI4] are anionic complex ions as indicated in the following reactions:
\[\ce{K4[Fe(CN)6] <=> 4K+ + [Fe(CN)6]^{4-}}\]
\[\ce{K[Ag(CN)2] <=> K+ + [Ag(CN)2]^{1-}}\]
\[\ce{K2[HgI4] <=> 2K+ + [HgI4]^{2-}}\]
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संबंधित प्रश्न
Draw the geometrical isomers of complex \[\ce{[Co(en)2Cl2]+}\].
Draw the geometrical isomers of complex [Pt(NH3)2Cl2].
Define the following term:
Anomers
Indicate the types of isomerism exhibited by the following complex and draw the structures for these isomers:
K[Cr(H2O)2(C2O4)2]
Indicate the types of isomerism exhibited by the following complex and draw the structures for these isomers:
[Co(en)3]Cl3
Indicate the types of isomerism exhibited by the following complex and draw the structures for these isomers:
[Co(NH3)5(NO2)](NO3)2
Indicate the types of isomerism exhibited by the following complex and draw the structure for this isomer:
[Pt(NH3)(H2O)Cl2]
How many geometrical isomers are possible in the following coordination entity?
[Cr(C2O4)3]3−
Draw the structure of optical isomers of [Cr(C2O4)3]3−.
Draw the structure of optical isomers of [PtCl2(en)2]2+.
Draw the structure of optical isomers of [Cr(NH3)2Cl2(en)]+.
Draw all the isomers (geometrical and optical) of [Co(NH3)Cl(en)2]2+.
What type of isomers are `[Co(NH_3)_5Br]SO_4`and `[Co(NH_3)_5SO_4]Br`?. Give a chemical test to distinguish between them.
What type of structural isomers are [Co(NH3)5 Br] SO4 and [Co(NH3)5 SO4]Br? Give a chemical test to distinguish the isomers.
Name the type of isomerism exhibited by the following pairs of compound:
(1) (C2H5)2NH and CH3-NH-C3H7
(2) 1 – butanol and 2 methyl-1 -propanol.
Identify the optically active compounds from the following:
(i) \[\ce{[Co(en)3]^{3+}}\]
(ii) \[\ce{[trans - [Co(en)2Cl2]^+}\]
(iii) \[\ce{cis - [Co(en)2Cl2]^+}\]
(iv) \[\ce{[Cr(NH3)5Cl]}\]
The complex [(Pt(Py)(NH3)BrCl] will have how many geometrical isomers?
Draw the geometrical isomers of [Co(en)2Cl2]2+. Which geometrical isomer of [Co(en)2Cl2]2+ is not optically active and why?
Indicate the types of isomerism exhibited by the following complexes and draw the structure for isomers:
\[\ce{[Pt(NH3)(H2O)Cl2]}\]
Indicate the type of isomerism exhibited by the following complex and draw the structure for this isomer:
[Pt(NH3)(H2O)Cl2]
Indicate the types of isomerism exhibited by the following complex and draw the structure for these isomer: \[\ce{[Pt(NH3)(H2O)Cl2]}\]
Indicate the types of isomerism exhibited by the following complexes and draw the structure for these isomer:
\[\ce{[Pt(NH3)(H2O)Cl2]}\]
Indicate the types of isomerism exhibited by the following complex and draw the structure for this isomer:
\[\ce{[Pt(NH3)(H2O)Cl2]}\]
Indicate the type of isomerism exhibited by the following complex and draw the structure for the isomer:
\[\ce{[Pt(NH3 )(H2O)Cl2]}\]
