SATHEE: Redox Reactions And Electrochemistry Ques 534

Redox Reactions And Electrochemistry Ques 534

Question: Which of the following substances acts as an oxidising as well as a reducing agent [UPSEAT 2004; DCE 2004]

Options:

A) $N a_{2} O$

B) $S n C l_{2}$

C) $N a_{2} O_{2}$

D) $N a N O_{2}$

Show Answer

Answer:

Correct Answer: D

Solution:

$N a N O_{2}$ (Sodium nitrite) act both as oxidising as well as reducing agent because in it $N$ atom is in +3 oxidation state (intermediate oxidation state)
Oxidising property

$2 N a N O_{2} + 2 K I + 2 H_{2} S O_{4} \overset{}{\to}, N a_{2} S O_{4} + K_{2} S O_{4}$ $+ 2 N O + 2 H_{2} O + I_{2}$ Reducing property

$H_{2} O_{2} + N a N O_{2} \overset{}{\to} N a N O_{3} + H_{2} O$ .

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Redox Reactions And Electrochemistry Ques 534

Question: Which of the following substances acts as an oxidising as well as a reducing agent [UPSEAT 2004; DCE 2004]

Options:

Answer:

Solution:

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