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JEE 2021 | Redox reaction
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Question 1
The oxidation state of each oxygen atom in is
Question 2
An example of a disproportionation reaction is :
Question 3
In order to oxidise a mixture of one mole of each of FeC2O4,Fe(C2O4)3,FeSO4 and Fe2(SO4)3 in acidic medium, the number of moles of KMnO4 required is:
Question 4
The values for Cr, Mn, Fe and Co are -0.41, +1.57, + 0.77 and 1.97 V, respectively. For which one of these metals the change in oxidation state from + 2 to + 3 is easiest?
Question 5
Hypo is used in photography due to its
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Mar 8JEE & BITSAT