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  • Can someone help me with this, A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number ?

A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number ?

  • Option 1)

    S

  • Option 2)

    H

  • Option 3)

    Cl

  • Option 4)

    C

 

Answers (1)

best_answer

As we learnt in

Oxidation number and oxidation state -

A term that is often used interchangeably with the oxidation number is the oxidation state. This implies oxidation number denote the oxidation state of an element.

-

 

+1  +5   -2                                           +6                  +6               -1                           

KClO_{3}+(COOH)_{2}+H_{2}SO_{4}\rightarrow K_{2}SO_{4}+KCl+CO_{2}+H_{2}O

Maximum change in oxidation number of chlorine i.e. from + 5 to - 1. 

Correct option is 4.

 


Option 1)

S

Incorrect

Option 2)

H

Incorrect

Option 3)

Cl

Correct

Option 4)

C

Incorrect

Posted by

Aadil

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