Question

what is redox reaction?
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Answer 1

Answer:

a reaction in which reduction and oxidation takes place at the same time

Answer 2

Redox reaction :

In a chemical reaction when both oxidation and reduction takes place simultaneously then it is called Redox reaction.

Examples :

$\bf CuO + H_{2} \: ➞ \: Cu + H_{2}O$

$\bf Here$

$\bf Substance \: oxidised : H_{2}$

$\bf Substance \: reduced : CuO$

$\bf Oxidising \: agent : CuO$

$\bf Reducing \: agent : H_{2}$