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Double Displacement Reaction

55.Describe b...

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55.Describe balancing of redox reactions by oxidation no method

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Q. The following redox reaction :

C l O^{-} + C r O_{2}^{-} \to C l^{-} + C r O_{4}^{2 -}

when balanced in a basic medium by oxidation number method is :

Q. Balance the following redox equations by the oxidation number method. The reactions occur in acidic medium.

H_{2} O_{2 (a q)} + C r_{2} O_{7}^{2 -} (a q) \to O_{2 (g)} + C r_{(a q)}^{3 +}

Q. When the following redox reaction

C u (a q) + N O_{3}^{-} (a q) \to C u^{2 +} (a q) + N O_{2} (g)

is balanced by oxidation number method in acidic meduim, the stoichiometric ratio

\frac{n_{N O_{2}}}{n_{H_{2} O}}

Q. When the following redox reaction

C u (a q) + N O_{3}^{-} (a q) \to C u^{2 +} (a q) + N O_{2} (g)

is balanced by oxidation number method in acidic meduim, the stoichiometric ratio

\frac{n_{N O_{2}}}{n_{H_{2} O}}

Q. Consider the following redox reaction :

S_{4} O_{6}^{2 -} (a q) + A l (s) \to H_{2} S (a q) + A l^{3 +} (a q)

What will be the net balanced equation in an acidic medium (by oxidation number method).

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