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Discovery of complexes was made by...

Discovery of complexes was made by

A

B. M. Tassaert

B

C.K. Jorgenson

C

Alfred Werner

D

Kasimiv Fajan

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A
In 1798 B.M. Tassaert found that a solution of cobalt (II) chloride in aqueous ammonia exposed to air (an oxidizing agent) deposits orange yellow crystals. He assigned the formula `CoCI_(3)` . `6NH_(3)` to these crystals. Later, a similar compound of platinum was assigned the formula `PtCI_(4)` . `6NH_(3)` . Because these formulas suggested that the substance were somehow composed of two stble compounds platinum (IV) chloride and ammoina in the latter case-they were called complex compounds or simply complexes. The vasic explanation for the structure of these complexes was given by the swiss Alfred Werner in 1893.
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R SHARMA-COORDINATION COMPOUNDS-Archives
  1. Discovery of complexes was made by

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  2. Which of the following pairs of d-orbitals will hare electron density ...

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  3. Jahn - Teller effect is not observed in high spin complexes of

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  4. Which of the following has longest C-O bond length? (Free C-O bond len...

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  5. The name of complex ion, [Fe(CN(6))]^(3-) is

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  6. The hybridization involved in complex [Ni(CN)(4)]^(2-) is (At. No . Ni...

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  7. The sum of coordination number and oxidation number of the metal M in ...

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  8. Number of possible isomer for the complex [Co(en)(2)CI(2)]CI will be: ...

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  9. Which of these statements about [Co(CN)6]^(3-) is true?

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  10. Cobalt (III) chloride forms several octahedral complexes with amonia. ...

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  11. The complex used as an anticancer agent is

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  12. A magnetic moment of 1.73 B.M. will be shown by one among the followin...

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  13. An excess of AgNO(3) is added to 100mL of a 0.01M solution of dichloro...

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  14. Which one of the following is an outer orbital complex and exhibits pa...

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  15. Red precipitae is obtained when ethanol solution of dimethylglyoxime i...

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  16. Low spin complex of d^6-cation in an octahedral field will have the fo...

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  17. The complex, [Pt(py)(NH3)BrCl] will have how many geometrical isomers?

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  18. [Co(HN(3))(6)][Cr(CN)(6)] and [Cr(NH(3))(6)][Co(CN)(6)] are .

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  19. The d-electron configurations of Cr^(2+), Mn^(2+), Fe^(2+) and Co^(2+)...

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  20. Of the following complex ions, which is diamagnetic in natures?

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  21. Which of the following complex compounds will exhibit highest magnetic...

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