Q.

The direction 3CrO43−+8H+→2CrO42−+Cr3++4H2O shows.

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a

Oxidation of Cr5+ only

b

Inter molecular redox

c

non redox reaction

d

Disproportionation reaction

answer is D.

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Detailed Solution

CrO43−                   CrO42−                         Cr3+x+4−2=−3     x+4−2=−2           x=+3x=+5                x=+6If one atom can undergo both oxidation and reduction called disproportion reaction
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