Question

Fill the missing products in the following reactions.

(i) $2MnO_{4}^{-} + 16H^{+} + 10I^{-} \rightarrow 2Mn^{2 +} + 8H_{2}O + \_\_\_.$

(ii) $2MnO_{4}^{-} + H_{2}O + I^{-} \rightarrow 2MnO_{2} + 2OH^{-} + \_\_\_.$

• A. (i) HI ; (ii) $I_{2}$
• B. (i) $I_{2}$; (ii) $IO_{3}^{-}$
• C. (i) $I_{2}$; (ii) $I_{2}$
• D. (i) $IO_{3}^{-};$ (ii) $I_{2}$

Answer 1

Answer: (B)

(i) $I_{2}$; (ii) $IO_{3}^{-}$

Answer 2

(i)

$2MnO_{4}^{-} + 16H^{+} + 10I^{-} \rightarrow 2Mn^{2 +} + 8H_{2}O + 5I_{2}$

(ii) $2MnO_{4}^{-} + H_{2}O + I^{-} \rightarrow 2MnO_{2} + 2OH^{-} + IO_{3}^{-}$