JEE Main 2024ChemistryRedox ReactionsMediumMCQ

JEE Main 2024 — Redox Reactions Question with Solution

JEE Main 2024 (01 Feb Shift 1)

Question

In acidic medium, K2Cr2O7 shows oxidising action as represented in the half reaction

Cr2O72-+XH++Ye-→2 A+ZH2O X, Y, Z and A are respectively are:

Choose an option

Show full solutionCorrect option: D
Correct answer
D14, 6, 7 and Cr3+

Step-by-step explanation

Potassium dichromate, K2Cr2O7, is a common inorganic chemical reagent, most commonly used as an oxidizing agent in various laboratory and industrial applications. 

The balanced reaction is,

Cr2O72-+14H++6e-→2Cr3++7H2O

X=14

Y=6

A=7

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About this question

This is a previous-year question from JEE Main 2024, covering the Redox Reactions 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.