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JEE CHEMISTRY MCQ: REDOX REACTIONS
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Identify the substance oxidised, reduced, oxidising agent and reducing agent respectively from the following reaction.
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Correct option: B
Option B (C6H6O2, AgBr, AgBr, C6H6O2) is correct because C6H6O2 is oxidized (reducing agent) and AgBr is reduced (oxidizing agent).
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The oxidation number of in sodium hydride is
A reagent, which can decrease the oxidation number of an element, is called
Consider the following decomposition reaction
In the above reaction, Assertion (A): acts as oxidizing agent.
Reason (R): Oxidation no. of nitrogen is +5, no increase in oxidation no. beyond +5 can occur. The oxidation no. of can only decrease. Assertion :- Bromide ion is serving as a reducing agent in the reaction.
Reason :- Oxidation number of increases from to A substance, that by its sharp colour change indicates the completion of reaction is known as :
In the above reaction, Assertion (A): acts as oxidizing agent.
Reason (R): Oxidation no. of nitrogen is +5, no increase in oxidation no. beyond +5 can occur. The oxidation no. of can only decrease. Assertion :- Bromide ion is serving as a reducing agent in the reaction.
Reason :- Oxidation number of increases from to A substance, that by its sharp colour change indicates the completion of reaction is known as :