Cobalt chloride when dissolved in water forms pink colored …

Chemistry Co-ordinatios Compounds JEE Main 2023 Single Correct MCQ

Published on: August 13, 2026

Cobalt chloride when dissolved in water forms pink colored complex X which has octahedral geometry. This solution on treating with cone HC1 forms deep blue complex, Y which has a Z geometry. X, Y and Z, respectively, are

X=[Co(H 2 O) 6 ] 2+ , Y=[CoCl 4 ] 2- , Z=Tetrahedral

X=[Co(H 2 O 6 )] 2+ , Y=[CoCI 6 ] 3- , Z=Octahedral

X=[Co(H 2 O) 6 ] 3+ , Y=[CoCl 6 ] 3- , Z=Octahedral

X=[Co(H 2 O) 4 Cl 2 ] + , Y=[CoCl 4 ] 2- , Z=Tetrahedral

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