The following reaction occurs in acidic aqueous solution-H 3 AsO 4- Zn - AsH 3- Zn 2-H 3 AsO 4 is aagent in which the oxidation number of As isA- Reducing- -5B- Oxidizing- -5C- Reducing- -3D- Oxidizing- -3

The correct option is B Oxidizing, +5H_3AsO_4 + Zn → AsH_3 + Zn^2+ Here, Zn is oxidized to Zn^2+. So, H_3AsO_4 is reduced and acts as an oxidising agent. In H ...

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Standard XII

Chemistry

Oxidising Reagent and Reducing Reagent

The following...

Question

The following reaction occurs in acidic aqueous solution:
$H_{3} A s O_{4} + Z n \to A s H_{3} + Z n^{2 +}$
$H_{3} A s O_{4}$ is a agent in which the oxidation number of $A s$ is _ .

Reducing, + 5

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Oxidizing, + 5

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Reducing, + 3

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Oxidizing, + 3

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Solution

The correct option is B $Oxidizing, + 5$
$H_{3} A s O_{4} + Z n \to A s H_{3} + Z n^{2 +}$
Here, $Z n$ is oxidized to $Z n^{2 +}$ .
So, $H_{3} A s O_{4}$ is reduced and acts as an oxidising agent.
In $H_{3} A s O_{4}$
$3 + x - 8 = 0 \Rightarrow x = + 5$

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The following reaction occurs in acidic aqueous solution: H3AsO4+Zn→AsH3+Zn2+ H3AsO4 is a ______ agent in which the oxidation number of As is _______ .

The correct option is B Oxidizing, +5H3AsO4+Zn→AsH3+Zn2+ Here, Zn is oxidized to Zn2+. So, H3AsO4 is reduced and acts as an oxidising agent. In H3AsO4 3+x−8 = 0⇒x = +5

The following reaction occurs in acidic aqueous solution:
$H_{3} A s O_{4} + Z n \to A s H_{3} + Z n^{2 +}$
$H_{3} A s O_{4}$ is a agent in which the oxidation number of $A s$ is _ .

The correct option is B $Oxidizing, + 5$
$H_{3} A s O_{4} + Z n \to A s H_{3} + Z n^{2 +}$
Here, $Z n$ is oxidized to $Z n^{2 +}$ .
So, $H_{3} A s O_{4}$ is reduced and acts as an oxidising agent.
In $H_{3} A s O_{4}$
$3 + x - 8 = 0 \Rightarrow x = + 5$