Answer: In a redox reaction, an electron is lost by the reducing agent.
Explanation: Redox reaction is a reaction in which reduction and oxidation both take place.
Oxidation is a process of loss of electrons. Oxidizing agent is one which oxidizes other and itself gets reduced i.e gain electrons.
Reduction is a process of gain of electrons.Reducing agent is one which reduces other and itself gets oxidized i.e lose electrons.
[tex]Fe_2O_3+3CO\rightarrow 2Fe+3CO_2[/tex]
In this redox reaction, [tex]Fe_2O_3[/tex] gets reduced to Fe and thus act as oxidising agent.[tex]CO[/tex] gets oxidised and act as reducing agent.
The true statement about the redox reaction is In a redox reaction, an electron is lost by the oxidizing agent.
The correct option is (A).
Any chemical reaction in which both oxidation and reduction occur with losing and gaining of an electron is called a redox reaction.
There are four types of redox reaction:
Example: In the reaction between hydrogen and fluorine, the hydrogen is oxidized whereas the fluorine is reduced.
[tex]H_2 + F_2 = 2HF[/tex]
The oxidation half-reaction is:[tex]H_2 +2H+ + 2e-[/tex]
The reduction half-reaction is:[tex]F_2 + 2e- 2F-[/tex]
Thereafter, the hydrogen and fluorine ions unite to form hydrogen fluoride.
Thus, the correct option is (A) the oxidizing agent loose the electron.
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