Question:
When hydrochloric acid is added to cobalt nitrate solution
Last updated: 7/4/2023
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When hydrochloric acid is added to cobalt nitrate solution at room temperature the following reaction takes place and the reaction mixture becomes blue On cooling the mixture becomes pink Co H O aq 4C1 aq Pink CoC141 aq blue 6H O l On the basis of this information mark the correct answer a AH is positive for the reaction b AH is negative for the reaction c AH 0 for the reaction d The sign of AH cannot be predicted on the basis of A