Which of the following is not an intermolecular redox reaction?

Question

Which of the following is not an intermolecular redox reaction? (A) MgCO 3 arrow MgO + CO 2 (B) O 2+2 H 2 arrow 2 H 2 O (C) K + H 2 O longrightarrow KOH +(1 / 2) H 2 (D) MnBr 3 arrow MnBr 2+(1 / 2) Br 2

Tardigrade Admin · Accepted Answer

Intermolecular redox reaction and redox reactions are same.
a. Oxidation states of

C a

and

C

are

+ 2

and

+ 4

, respectively, in both reactant and product: hence, not redox,
b.

4 e^{-} + O_{2} \to 2 O^{2 -}

(Reduction)

H_{2} \to 2 H^{\oplus} + 2 e^{-}

(Oxidation)Hence, redox
c.

N a \to N a^{\oplus} + e^{-}

(Oxidation)

2 H^{\oplus} + 2 e^{-} \to H_{2}

(Reduction) Hence, redox
d.

e^{-} + M n^{3 +} \to M n^{2 +}

(Reduction)

2 C l^{⊖} \to C l_{2} + 2 e^{-}

(Oxidation) Hence, redox

Q. Which of the following is not an intermolecular redox reaction?

$M g C O_{3} \to M g O + C O_{2}$

$O_{2} + 2 H_{2} \to 2 H_{2} O$

$K + H_{2} O ⟶ K O H + (1/2) H_{2}$

$M n B r_{3} \to M n B r_{2} + (1/2) B r_{2}$

Q. Which of the following is not an intermolecular redox reaction?

MgCO3​→MgO+CO2​

O2​+2H2​→2H2​O

K+H2​O⟶KOH+(1/2)H2​

MnBr3​→MnBr2​+(1/2)Br2​

$M g C O_{3} \to M g O + C O_{2}$

$O_{2} + 2 H_{2} \to 2 H_{2} O$

$K + H_{2} O ⟶ K O H + (1/2) H_{2}$

$M n B r_{3} \to M n B r_{2} + (1/2) B r_{2}$