When hydrochloric acid is added to cobalt nitrate solution

Last updated: 7/4/2023

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