Which of the following is not a redox reaction?

Question

Which of the following is not a redox reaction? (A) CuO + H2 → Cu + H2O (B) Na + H2O → NaOH + (1/2) H2 (C) CaCO3 → CaO + CO2 (D) 2K + F2 → 2KF

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/1974b01830d1d792aba937f137946143-.jpeg" /> Since there is no change in oxidation number of any species, it is not a redox reaction.

Q. Which of the following is not a redox reaction?

$C u O + H_{2} \to C u + H_{2} O$

$N a + H_{2} O \to N a O H + \frac{1}{2} H_{2}$

$C a C O_{3} \to C a O + C O_{2}$

$2 K + F_{2} \to 2 K F$

Since there is no change in oxidation number of any species, it is not a redox reaction.

Q. Which of the following is not a redox reaction?

CuO+H2​→Cu+H2​O

Na+H2​O→NaOH+21​H2​

CaCO3​→CaO+CO2​

2K+F2​→2KF

Since there is no change in oxidation number of any species, it is not a redox reaction.

$C u O + H_{2} \to C u + H_{2} O$

$N a + H_{2} O \to N a O H + \frac{1}{2} H_{2}$

$C a C O_{3} \to C a O + C O_{2}$

$2 K + F_{2} \to 2 K F$