`CoCl_(4)^(2-)(aq)` is blue in color while `[Co(H_(2)O)_(6)]^(2+)` is pink. The color of reaction mixture
`Co(H_(2)O)_(6)^(2+)(aq)+4Cl^(-)(aq)hArr CoCl_(4)^(2-)(aq)+6H_(2)O(l)`
is blue at room temprature while it is pink when cooled heance

Assertion : On cooling a freezing mixture, color of the mixture turns to pink from deep blue for a reaction. Co(H_(2)O)_(6)^(2+)_(aq) + 4Ci^(-)_(aq) hArrCoCI_(4)^(2-)(aq) + 6H_(2)O_((l)) . Reason : Reaction is endothermic so on cooling, the reaction moves to backward direction.

Why does the following reaction occurs? XeO_(6)^(4-)(aq)+2F^(-)(aq)+6H^(+)(aq)toXeO_(3)(g)+F_(2)(g)+3H_(2)O(l)

The reaction, 2H_(2)O(l) to 4H^(+)(aq.)+O_(2)(g)+4^(-) is

In the reaction : 2Al (s) + 6HCl(aq) to 2Al^(3+) (aq) + 6Cl^(-) (aq) + 3H_2O(g)