In which of the following reactions H 2 O 2 acts as 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 - O 2-2 H 2 OA- I and IIB- III and IC- III and ID- II and IV

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Byju's Answer

Standard XII

Chemistry

Properties of Water

In which of t...

Question

In which of the following reactions $H_{2} O_{2}$ acts as reducing agent?
I. $H_{2} O_{2} + 2 H^{+} + 2 e^{-} \to 2 H_{2} O$
II. $H_{2} O_{2} - 2 e^{-} \to O_{2} + 2 H^{+}$
III. $H_{2} O_{2} + 2 e^{-} \to 2 O H^{-}$
IV. $H_{2} O_{2} + 2 O H^{-} - 2 e^{-} \to O_{2} + 2 H_{2} O$

I and II

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III and I

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III and I

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II and IV

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Solution

The correct option is D II and IV
In equation II and IV, $H_{2} O_{2}$ releases $e^{-}$ , hence shows $H_{2} O_{2}$ is a reducing agent.

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Similar questions

Q. In which of the following reactions

H_{2} O_{2}

acts as a reducing agent?
i)

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

ii)

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

iii)

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

iv)

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

Q. 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)

Q. 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)

Q. In which of the following reactions

H_{2} O_{2}

acts as a reducing agent?

Q. In which of the following reactions,

H_{2} O_{2}

acts as reducing agent?
(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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In which of the following reactions H2O2 acts as reducing agent? I. H2O2+2H++2e−→2H2O II. H2O2−2e−→O2+2H+ III. H2O2+2e−→2OH− IV. H2O2+2OH−−2e−→O2+2H2O

The correct option is D II and IVIn equation II and IV, H2O2 releases e−, hence shows H2O2 is a reducing agent.

In which of the following reactions $H_{2} O_{2}$ acts as reducing agent?
I. $H_{2} O_{2} + 2 H^{+} + 2 e^{-} \to 2 H_{2} O$
II. $H_{2} O_{2} - 2 e^{-} \to O_{2} + 2 H^{+}$
III. $H_{2} O_{2} + 2 e^{-} \to 2 O H^{-}$
IV. $H_{2} O_{2} + 2 O H^{-} - 2 e^{-} \to O_{2} + 2 H_{2} O$

The correct option is D II and IV
In equation II and IV, $H_{2} O_{2}$ releases $e^{-}$ , hence shows $H_{2} O_{2}$ is a reducing agent.