Identify the oxidant and the reductant in the following reaction respectively-I 2- N a 2 S 2 O 3- N a 2 S 4 O 6- NaIA- I 2- Na 2 S 2 O 3B- Na 2 S 2 O 3- I 2C- I 2- N aID- NaI - I 2

The correct option is A I_2 & Na_2S_2O_3(0)I_2+ (+2)Na_2S_2O_3→ nbsp;(+2.5)Na_2S_4O_6 + ( 1)NaI. (0)I_2(oxidant) → nbsp;( 1)NaI(reduction half). (+2)Na ...

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Standard XII

Chemistry

Oxidising Reagent and Reducing Reagent

Identify the ...

Question

Identify the oxidant and the reductant in the following reaction respectively:
$I_{2} + N a_{2} S_{2} O_{3} \to N a_{2} S_{4} O_{6} + N a I$

I_{2}

&

N a_{2} S_{2} O_{3}

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N a_{2} S_{2} O_{3}

&

I_{2}

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I_{2}

&

N a I

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N a I

&

I_{2}

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Solution

The correct option is A $I_{2}$ $&$ $N a_{2} S_{2} O_{3}$
$_{2} + (+ 2) N a_{2} S_{2} O_{3} \to (+ 2.5) N a_{2} S_{4} O_{6} + (- 1) N a I .$
$_{2} (oxidant) \to (- 1) N a I (reduction half) .$
$(+ 2) N a_{2} S_{2} O_{3} (reductant) \to (2.5) N a_{2} S_{4} O_{6} (oxidation half) .$

A species which gain electron in a redox reaction is called as oxidising agent.
$(I_{2})$ gets converted into nitric oxide $(I^{-})$ . Iodine is getting reduced because it is gaining electrons, so $I_{2}$ is the oxidizing agent.

A species which looses electron in a redox reaction is called as reducing agent.
$N a_{2} S_{2} O_{3}$ gets converted to $N a_{2} S_{4} O_{6}$ $N a_{2} S_{2} O_{3}$ is getting oxidized since there is loss of electrons , so it is the reducing agent.

$I_{2}$ and $N a_{2} S_{2} O_{3}$ in this order is the correct answer.

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Similar questions

Q. Identify the oxidant and the reductant in the following reaction respectively:

I_{2} + N a_{2} S_{2} O_{3} \to N a_{2} S_{4} O_{6} + N a I

Balance the following equations:
1. FeCl₃ + NH₄OH → Fe(OH)₃ + NH₄Cl
2. Na₂S₂O₃ + I₂ → Na₂S₄O₆ + NaI

Q. In the test for iodine,

I_{2}

is treated with sodium thiosulphate

(N a_{2} S_{2} O_{3})

(N a_{2} S_{2} O_{3}) + I_{2} ⟶ N a I + \dots \dots

Q. When

N a_{2} S_{2} O_{3}

reacts with

I_{2}

to form

N a_{2} S_{4} O_{6}

and

N a I

then which statement(s) is correct?

Q. In the following reaction,

N a_{2} S_{2} O_{3}

is converted to

N a_{2} S_{4} O_{6}

2 N a_{2} S_{2} O_{3} + I_{2} \to N a_{2} S_{4} O_{6} + 2 N a I

The equivalent weight of

N a_{2} S_{2} O_{3}

for this reaction is:
(The molecular weight of

N a_{2} S_{2} O_{3} = M)

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Oxidising Reagent and Reducing Reagent

Standard XII Chemistry

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Identify the oxidant and the reductant in the following reaction respectively: I2+Na2S2O3→Na2S4O6+NaI

Identify the oxidant and the reductant in the following reaction respectively:
$I_{2} + N a_{2} S_{2} O_{3} \to N a_{2} S_{4} O_{6} + N a I$