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← JEE Main 2022 · 29 Jun · Shift 1
ChemistryInteger+4 / -1Question 87 of 90

JEE Main 2022 · 29 Jun · Shift 1, Chemistry question 87

An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is ______ B.M. (Nearest integer)

Answer and worked solution

Official answer: 0

Disproportionation. 3MnO42−+4H+→2MnO4−+MnO2+2H2O\mathrm{3MnO_4^{2-}+4H^+\rightarrow2MnO_4^-+MnO_2+2H_2O}. The higher state is Mn(VII), d0d^0: 0 B.M.

Answer: 0