Identify the substance oxidised, reduced, oxidising agent and reducing agent for the following reaction. ${H C H O}_{(l)} + 2 [A g (N H_{3})_{2}]_{(a q)}^{+} + 3 O H_{(a q)}^{-} \to 2 A g_{(s)} + H C O O_{(a q)}^{-} + 4 {N H_{3}}_{(a q)} + 2 {H_{2} O}_{(l)}$

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Solution

${H C H O}_{(l)} + 2 [A g (N H_{3})_{2}]_{(a q)}^{+} + 3 O H_{(a q)}^{-} \to 2 A g_{(s)} + H C O O_{(a q)}^{-} + 4 {N H_{3}}_{(a q)} + 2 {H_{2} O}_{(l)}$

$H C H O$ is oxidized to formate and $[A g (N H_{3})_{2}]^{+}$ is reduced to $A g$ .

$[A g (N H_{3})_{2}]^{+}$ is the oxidizing agent and $H C H O$ is reducing agent.

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Similar questions

Identify the substance oxidised, reduced, oxidising agent and reducing agent for each of the following reactions:

(a) 2AgBr (s) + C₆H₆O₂(aq) → 2Ag(s) + 2HBr (aq) + C₆H₄O₂(aq)

(b) HCHO(l) + 2[Ag (NH₃)₂]⁺(aq) + 3OH^–(aq) → 2Ag(s) + HCOO^–(aq) + 4NH₃(aq) + 2H₂O(l)

(d) N₂H₄(l) + 2H₂O₂(l) → N₂(g) + 4H₂O(l)

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2 A g B r (s) + C_{6} H_{6} O_{2} (a q) \to 2 A g (s) + 2 H B r (a q) + C_{6} H_{4} O_{2} (a q)

P b_{(s)} + P b O_{2 (s)} + 2 H_{2} S O_{4 (a q)} \to 2 P b S O_{4 (s)} + 2 H_{2} O_{(l)}

A g^{+}

C u^{2 +}

H_{3} P O_{2} (a q) + 4 A g N O_{3} (a q) + 2 H_{2} O (l) \to H_{3} P O (a q) + 4 A g (s) + 4 H N O_{3} (a q)

H_{3} P O_{2} (a q) + 2 C u S O_{4} (a q) + 2 H_{2} O (l) \to H_{3} P O_{4} (a q) + 2 C u (s) + H_{2} S O_{4} (a q)

C_{6} H_{5} C H O (l) + 2 [A g (N H_{3})_{2}]^{+} (a q) + 3 O H^{-} (a q) \to C_{6} H_{5} C O O^{-} (a q)

+ 2 A g (s) + 4 N H_{3} (a q) + 2 H_{2} O (l)

C_{6} H_{5} C H O (l) + 2 C u^{2 +} (a q) + 5 O H^{-} (a q) \to

I_{2 (a q)} + 2 S_{2} O_{3}^{2 -} (a q) \to S_{4} O_{6}^{2 -} (a q) + 2 I^{-} (a q)

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