First slide

Oxidation, Reduction, Oxidant and Reductant

Question

Which one of the following can act like both oxidizing and reducing agent ?

Easy

A

${CH}_{4}$
B

$H_{2} S$
C

${SO}_{2}$
D

$N_{2} O_{5}$

Solution

$\overset{- 4}{C} H_{4}; H_{2} \overset{- 2}{S};; Ox . state in both the above compounds = Gp . Number - 8, which is the least oxidation state exhibited by any element in its compound . They can act like reductants but never act like oxidants Oxidation state of sulphur in {SO}_{2} = + 4 Element in its intermediate oxidation state, can act like oxidizing and reducing agent . {\overset{+ 5}{N}}_{2} O_{5} = Oxidation state = Gp . number; It acts like oxidizing agent only;$

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