How many of the following can act as an oxidising agent: H_2S, H_2SO_4, H_2SO_3, H_2S_2O_3?

JEE Main Chemistry question

How many of the following can act as an oxidising agent: , , , ?

Answer: 3

Solution

Sulphur's lowest common oxidation state is (as in ), so can only be oxidised further and cannot act as an oxidising agent. In (), () and (average , i.e. ), sulphur is above its lowest state in each case,

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Question ID VK-146106