Which of the following statements is/are incorrect
(I) Filter paper moistened with cadmium acetate and lead acetate turn black and yellow respectively, when brought in contact with `H_(2)S` gas.
(II) Sulphites in presence of Zinc, reacts with dilute `H_(2)SO_(4)` to liberate `H_(2)S` gas.
(III) Stability of carbonates decrease with increasing metallic character.
(IV) Borax bead test is responded generally by p and d block metal salts.
(V) Sodium chloride on heating with aqueous solution of `K_(2)Cr_(2)O_(7)` and concentrated `H_(2)SO_(4)` produced white fumes.