Discovery of complexes was made byA. B. M. TassaertB. C.K. JorgensonC. Alfred WernerD. Kasimiv Fajan

Discovery of complexes was made byA. B. M. TassaertB. C.K. JorgensonC.

1.	Discovery of complexes was made byA. B. M. TassaertB. C.K. JorgensonC. Alfred WernerD. Kasimiv Fajan
Answer» Correct Answer - 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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Discovery of complexes was made byA. B. M. TassaertB. C.K. JorgensonC. Alfred WernerD. Kasimiv Fajan

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