Which is better oxidising agent out of KMnO 4 and K 2 Cr 2 O 7 -

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Which is better oxidising agent out of KMnO₄ and K₂Cr₂O₇ ?

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K M n O_{4}

K_{2} C r_{2} O_{7}

N a_{2} S_{2} O_{7}

H C l

K M n O_{4}

K M n O_{4} ⟶ M n^{2 +}

K_{2} C r_{2} O_{7} ⟶ C r^{3 +}

K C l O_{3} ⟶ C l^{-}

K = 39, C r = 52, M n = 55, C l = 35.5, O = 16

K_{2} C r_{2} O_{7}, I_{2}

K M n O_{4}

0.19

K_{2} S_{2} O_{3}

0.1 M

C r_{2} O_{7}^{2 -} + S_{2} O_{3}^{2 -} \to C r^{3 +} + S O_{4}^{2 -}

I_{2} + S_{2} O_{3}^{2 -} \to I^{⊝} + S_{4} O_{6}^{2 -}

M n O_{4}^{⊝} + S_{2} O_{3}^{2 -} \to M n O_{2} + S O_{4}^{2 -}

K_{2} S_{2} O_{3} = 190, K_{2} C r_{2} O_{7} = 294, K M n O_{4} = 158,

I_{2} = 254 g

m o l^{- 1}

K_{2} C r_{2} O_{7}

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