Which of the following reactions is an example of a redox reaction ?

Question

Which of the following reactions is an example of a redox reaction ? (A) XeF 6+ H 2 O arrow XeOF 4+2 HF (B) XeF 6+2 H 2 O arrow XeO 2 F 2+4 HF (C) XeF 4+ O 2 F 2 arrow XeF 6+ O 2 (D) XeF 2+ PF 5 arrow[ XeF ]+ PF 6-

Tardigrade Admin · Accepted Answer

The reaction XeF 4+ O 2 F 2 arrow XeF 6+ O 2 is an example of a redox reaction. The oxidation number of Xe increases from +4( XeF 4) to +6( XeF 6). Hence, it is oxidised. The oxidation number of oxygen decreases from +1( O 2 F 2) to 0( O 2). Hence, it is reduced.

Q. Which of the following reactions is an example of a redox reaction ?

$X e F_{6} + H_{2} O \to X e O F_{4} + 2 H F$

$X e F_{6} + 2 H_{2} O \to X e O_{2} F_{2} + 4 H F$

$X e F_{4} + O_{2} F_{2} \to X e F_{6} + O_{2}$

$X e F_{2} + P F_{5} \to [X e F]^{+} P F_{6}^{-}$

Q. Which of the following reactions is an example of a redox reaction ?

XeF6​+H2​O→XeOF4​+2HF

XeF6​+2H2​O→XeO2​F2​+4HF

XeF4​+O2​F2​→XeF6​+O2​

XeF2​+PF5​→[XeF]+PF6−​

The reaction XeF4​+O2​F2​→XeF6​+O2​ is an example of a redox reaction. The oxidation number of Xe increases from +4(XeF4​) to +6(XeF6​). Hence, it is oxidised. The oxidation number of oxygen decreases from +1(O2​F2​) to 0(O2​). Hence, it is reduced.

$X e F_{6} + H_{2} O \to X e O F_{4} + 2 H F$

$X e F_{6} + 2 H_{2} O \to X e O_{2} F_{2} + 4 H F$

$X e F_{4} + O_{2} F_{2} \to X e F_{6} + O_{2}$

$X e F_{2} + P F_{5} \to [X e F]^{+} P F_{6}^{-}$