Which of the following is an example of pseudo unimolecular reaction?

Question

Which of the following is an example of pseudo unimolecular reaction? (A) CH 3 COOCH 3+ H 2 O stackrel H + longrightarrow CH 3 COOH + CH 3 OH (B) CH 3 COOCH 3 + H 2 O stackrel OH - longrightarrow CH 3 COOH + CH 3 OH (C) 2 FeCl 3+ SnCl 2 arrow SnCl 4+2 FeCl 2 (D) NaOH + HCl arrow NaCl + H 2 O

Tardigrade Admin · Accepted Answer

When in any chemical reaction, one of the reactant is present in large excess, then the secondorder reaction becomes first-order reaction and is known as pseudo unimolecular reaction e.g.,

C H_{3} COOC H_{3}^{+} H_{2} O H^{+} C H_{3} COO H^{+} C H_{3} O H

in this reaction molecularity is 2 but order of reaction is found to be first order experimentally, so it is an example of pseudo unimolecular reaction.

Q. Which of the following is an example of pseudo unimolecular reaction?

$C H_{3} COOC H_{3} + H_{2} O ⟶ H^{+} C H_{3} COO H^{+} C H_{3} O H$

$C H_{3} COOC H_{3}^{+} H_{2} O ⟶ O H^{-} C H_{3} COO H^{+} C H_{3} O H$

$2 F e C l_{3} + S n C l_{2} \to S n C l_{4} + 2 F e C l_{2}$

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

Q. Which of the following is an example of pseudo unimolecular reaction?

CH3​COOCH3​+H2​O⟶H+​CH3​COOH+CH3​OH

CH3​COOCH3​+H2​O⟶OH−​CH3​COOH+CH3​OH

2FeCl3​+SnCl2​→SnCl4​+2FeCl2​

NaOH+HCl→NaCl+H2​O

$C H_{3} COOC H_{3} + H_{2} O ⟶ H^{+} C H_{3} COO H^{+} C H_{3} O H$

$C H_{3} COOC H_{3}^{+} H_{2} O ⟶ O H^{-} C H_{3} COO H^{+} C H_{3} O H$

$2 F e C l_{3} + S n C l_{2} \to S n C l_{4} + 2 F e C l_{2}$

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