In which of the following reactions H 2 O 2 acts as a reducing agent- i- H 2 O 2-2 H -2 e - 2 H 2 Oii- H 2 O 2-2 e - O 2-2 H -iii- H 2 O 2-2 e - 2 OH -iv- H 2 O 2-2 OH -2 e - 2 H 2 OIIT-JEE-2014A-B- iiC- iiiD- iv

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Oxidants and Reductants

In which of t...

Question

In which of the following reactions $H_{2} O_{2}$ acts as a reducing agent?
i. $H_{2} O_{2} + 2 H^{\oplus} + 2 e^{⊖} \to 2 H_{2} O$
ii. $H_{2} O_{2} - 2 e^{⊖} \to O_{2} + 2 H^{\oplus}$
iii. $H_{2} O_{2} + 2 e^{⊖} \to 2 O H^{⊖}$
iv. $H_{2} O_{2} + 2 O H^{⊖} - 2 e^{⊖} \to 2 H_{2} O$
(IIT-JEE-2014)

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H_{2} O_{2}

H_{2} O_{2} + 2 H^{\oplus} + 2 e^{⊖} \to 2 H_{2} O

H_{2} O_{2} - 2 e^{⊖} \to O_{2} + 2 H^{\oplus}

H_{2} O_{2} + 2 e^{⊖} \to 2 O H^{⊖}

H_{2} O_{2} + 2 O H^{⊖} - 2 e^{⊖} \to 2 H_{2} O

H_{2} O_{2}

H_{2} O_{2} + 2 H^{+} + 2 e^{-} \to 2 H_{2} O

H_{2} O_{2} + 2 e^{-} \to O_{2} + 2 H^{+}

H_{2} O_{2} + 2 e^{-} \to 2 O H^{-}

H_{2} O_{2} + 2 O H^{-} - 2 e^{-} \to O_{2} + 2 H_{2} O

H_{2} O_{2}

H_{2} O_{2} + 2 H^{+} + 2 e^{-} \to 2 H_{2} O

H_{2} O_{2} - 2 e^{-} \to O_{2} + 2 H^{+}

H_{2} O_{2} + 2 e^{-} \to 2 O H^{-}

H_{2} O_{2} + 2 O H^{-} - 2 e^{-} \to O_{2} + 2 H_{2} O

H_{2} O_{2}

H_{2} O_{2}

(a)

H_{2} O_{2} + 2 H^{+} + 2 e^{-} \to 2 H_{2} O

(b)

H_{2} O_{2} - 2 e^{-} \to O_{2} + 2 H^{+}

(c)

H_{2} O_{2} + 2 e^{-} \to 2 O H^{-}

(d)

H_{2} O_{2} + 2 O H^{-} - 2 e^{-} \to O_{2} + 2 H_{2} O

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