When concentrated HCl is added to an a queous solution of CoCl2 , its colour changes from reddish pink to deep blue. Which complex ion gives colour in this reaction?
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4 when cocl2 is dissolved in water a pale coloured pink solution is obtained on adding conc hcl the solution turns an intense blue colour suggest structures for the pink and the blue complex 92092
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Reaction 3: Cobalt ionsNote the colours:CoCl2:After addition... | Filo
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