What properties does $H_{2} S$ show when it reacts with aqueous solution of $K M n O_{4}, H_{2} O_{2}$ and $N a O H$ ?

Reducing agent, Oxidizing agent, Diprotic acid

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Reducing agent, Diprotic acid , Oxidizing agent

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Oxidizing agent , Reducing agent, Reducing agent

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Reducing agent, Reducing agent, Diprotic acid

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Solution

The correct option is C Reducing agent, Reducing agent, Diprotic acid
$M n O_{4}^{-} + H^{+} + H_{2} S \to S + M n^{2 +} H_{2} S is a reducing agent . H_{2} S + H_{2} O_{2} \to H_{2} O + H_{2} S O_{4} H_{2} S is a reducing agent . H_{2} S + N a O H \to N a H S \to N a_{2} S H_{2} S is a diprotic acid .$

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