Which of the following statement is incorrect

CHEMISTRY · Single correct · CBSE · Chemistry · Redox Reactions · Redox Reactions

Problem

Which of the following statement is incorrect? - (I) In S2O32−\text{S}_2\text{O}_3^{2-} both sulphur are different in nature - (II) Sodium acetate and lead acetate on heating giving same type of product, whereas Mn, Sn, Fe oxalate salt giving different type of products. - (III) Aqueous solution OCl−\text{OCl}^- , S2−\text{S}^{2-} and CO32−\text{CO}_3^{2-} basic in nature - (IV) NO2−\text{NO}_2^- oxidises I−\text{I}^- whereas Br2\text{Br}_2 and Cl2\text{Cl}_2 oxidises NO2−\text{NO}_2^- (1) II only (2) II, III, IV (3) II, IV (4) I, II, IV

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