1.

Which the following statements is wrong ?

Answer»

An ACIDIFIED solution of `K_2Cr_2O_7` liberates iodine from iodides
In acidic solution DICHROMATE ions are CONVERTED to chromate ions
Ammonium dichromate on HEATING undergoes exothermic decomposition to GIVE `Cr_2O_3`
Potassium dichromate is used as titrant for `Fe^(+2)` ions

Solution :`CrO_(4)^(-2) overset(pH=6)underset("pH=8")hArr Cr_2O_7^(-2)`


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