JEE Main 2014ChemistryHydrogenMediumMCQ

JEE Main 2014 — Hydrogen Question with Solution

JEE Main 2014 (06 Apr)

Question

In which of the following reactions H2O2 acts as a reducing agent ?

(a)   H 2 O 2 + 2 H + + 2 e - → 2 H 2 O

(b)   H 2 O 2 - 2 e - → O 2 + 2 H +

(c)   H 2 O 2 + 2 e - → 2 OH -

(d)   H 2 O 2 + 2 OH - - 2 e - → O 2 + 2 H 2 O

Choose an option

Show full solutionCorrect option: D
Correct answer
D(b) , (d)

Step-by-step explanation

Reducing agent undergoes oxidation and in oxidation half reaction there will be loss of electrons.

(b)   H 2 O 2 → O 2 + 2 H + + 2 e - (loss)

(d)   H 2 O 2 + OH - → 2 H 2 O + O 2 + 2 e - (loss)

 

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About this question

This is a previous-year question from JEE Main 2014, covering the Hydrogen chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.