Two half reactions are given as follows- 2e- - H- - H5IO6 - IO3- - 3H2O Cr - Cr3- - 3e-Final balanced reaction is-

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Frankland Halide Reaction

Two half reac...

Question

Two half reactions are given as follows:
$2 e^{-} + H^{+} + H_{5} I O_{6} \to I O^{3 -} + 3 H_{2} O$
$C r \to C r^{3 +} + 3 e^{-}$
Final balanced reaction is:

3 H^{+} + 3 H_{5} I O_{6} + 2 C r \to 2 C r^{3 +} + 3 I O^{3 -} + 9 H_{2} O

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5 H^{+} + 3 H_{5} I O_{6} + 2 C r \to 2 C r^{3 +} + 3 I O^{3 -} + 10 H_{2} O

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3 H^{+} + 3 H_{5} I O_{6} + 4 C r \to 4 C r^{3 +} + 3 I O^{3 -} + 9 H_{2} O

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3 H^{+} + 3 H_{5} I O_{6} + 3 C r \to 3 C r^{3 +} + 3 I O^{3 -} + 9 H_{2} O

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Solution

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Similar questions

E_{C e l l}^{0}

2 C r + 3 H_{2} O + 3 O C l^{-} \to 2 C r^{3 +} + 3 C l^{-} + 6 O H^{-}

C r^{3 +} + 3 e^{-} \to C r

E^{0} = - 0.74 V

O C l^{-} + H_{2} O + 2 e^{-} \to C l^{-} + 2 O H^{-}

E^{0} = 0.94 V

C r_{2} O_{7}^{2} + 8 H^{+} + 3 H_{2} O_{2} \to 2 C r^{3 +} + 7 H_{2} O + 3 O_{2}

C r_{2} O_{7}^{2} + 8 H^{+} + 5 H_{2} O_{2} \to 2 C r^{3 +} + 9 H_{2} O + 4 O_{2}

C r_{2} O_{7}^{2} + 8 H^{+} + 7 H_{2} O_{2} \to 2 C r^{3 +} + 11 H_{2} O + 5 O_{2}

H_{2} O_{2}

2 C r + 3 N i^{2 +} \to 3 N i + 2 C r^{3 +}

_{2}

_{7}^{2 -}

_{2}

^{+}

\to

^{3 +}

_{2}

2 C r_{(s)} + 3 C d_{(a q)}^{2 +} \to 2 C r_{(a q)}^{3 +} + 3 C d_{(s)}

E_{C r^{3 +} / C r}^{o} = - 0.74

E_{C d^{2 +} / C d}^{o} = - 0.40

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