Which one of the following reactions does not involve either oxidation or reduction?

Question

Which one of the following reactions does not involve either oxidation or reduction? (A) VO+2 → V2O3 (B) Na -> Na+ (C) CrO2-4 → Cr2 O2-7 (D) Zn2+ → Zn

Tardigrade Admin · Accepted Answer

overset .Cro2-4 x+[(-2) × 4]=-2 x=8-2=+6 overset.Cr2O2-7 2x=14-2=12 x=(12/2)=+6 In this reaction oxidation and reduction are not involved because there is no change in oxidation number.

Q. Which one of the following reactions does not involve either oxidation or reduction?

$V O_{2}^{+} \to V_{2} O_{3}$

$N a - > N a^{+}$

$C r O_{4}^{2 -} \to C r_{2} O_{7}^{2 -}$

$Z n^{2 +} \to Z n$

$C . r o_{4}^{2 -}$
$x + [(- 2) \times 4] = - 2$
$x = 8 - 2 = + 6$
$C . r_{2} O_{7}^{2 -}$
$2 x = 14 - 2 = 12$
$x = \frac{12}{2} = + 6$
In this reaction oxidation and reduction are not involved because there is no change in oxidation number.

Q. Which one of the following reactions does not involve either oxidation or reduction?

VO2+​→V2​O3​

Na−>Na+

CrO42−​→Cr2​O72−​

Zn2+→Zn

C.ro42−​ x+[(−2)×4]=−2 x=8−2=+6 C.r2​O72−​ 2x=14−2=12 x=212​=+6 In this reaction oxidation and reduction are not involved because there is no change in oxidation number.

$V O_{2}^{+} \to V_{2} O_{3}$

$N a - > N a^{+}$

$C r O_{4}^{2 -} \to C r_{2} O_{7}^{2 -}$

$Z n^{2 +} \to Z n$

$C . r o_{4}^{2 -}$
$x + [(- 2) \times 4] = - 2$
$x = 8 - 2 = + 6$
$C . r_{2} O_{7}^{2 -}$
$2 x = 14 - 2 = 12$
$x = \frac{12}{2} = + 6$
In this reaction oxidation and reduction are not involved because there is no change in oxidation number.