The best reducing agent of the following is :

H_{2} S

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C l^{-}

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S O_{4}^{2 -}

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O_{3}

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Solution

The correct option is A $H_{2} S$
In $H_{2} S$ , S is in lowest oxidation state so it has highest tendency to loose electrons and it is best reducing agent.

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The best reducing agent of the following is :

The correct option is A H2SIn H2S, S is in lowest oxidation state so it has highest tendency to loose electrons and it is best reducing agent.

The correct option is A $H_{2} S$
In $H_{2} S$ , S is in lowest oxidation state so it has highest tendency to loose electrons and it is best reducing agent.