Chemistry

Problem

Which of the following statement is incorrect? - (I) In

\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

\text{OCl}^-

\text{S}^{2-}

and

\text{CO}_3^{2-}

basic in nature - (IV)

\text{NO}_2^-

oxidises

\text{I}^-

whereas

\text{Br}_2

and

\text{Cl}_2

oxidises

\text{NO}_2^-

a. II only b. II, III, IV c. II, IV d. I, II, IV

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