Which of the following statements are correct for this exothermic reaction ?
`CoCl"_4^(2-)(aq)+6H_2O(l) iff [Co(H_2O)_6)]^(2+) (aq) +4Cl^-` `(aq)`
(Consider initially only `CoCl"_4^(2-)` is added to water)

Options

A. If HCl is added to above equilibrium then concentration of [CoCl4]2− (aq) will increase
B. On dilution with water the concentration of [CoCl4]2− (aq) will decrease
C. On doubling the volume of solution by addition of water the final concentration of [Co(H2O)6]2+ will be double than its initial concentration
D. On increasing temperature the concentration of [CoCl4]2− will increase

Answer

C