Which of the following is the correct chemical equation for the acid hydrolysis of $N$-methylacetamide?

• A. ${\mathrm{CH}}_3\mathrm{CONHCH}{3}_1+H{2}_{2}O+\mathrm{HCl}\to {\mathrm{CH}}_3\mathrm{COOH}+\mathrm{CH}{3}_1\mathrm{NH}{3}_1+\mathrm{Cl}-$
• B. ${\mathrm{CH}}_3\mathrm{CONHCH}{3}_1+\mathrm{NaOH}\to {\mathrm{CH}}_3\mathrm{COONa}+\mathrm{CH}{3}_1\mathrm{NH}{2}_2$
• C. ${\mathrm{CH}}_3\mathrm{CONHCH}{3}_1+\mathrm{Br}{2}_2\to {\mathrm{CH}}_3\mathrm{COBr}+\mathrm{CH}{3}_1\mathrm{NH}{2}_2$
• D. ${\mathrm{CH}}_3\mathrm{CONHCH}{3}_1+H{2}_{2}O\to {\mathrm{CH}}_3\mathrm{COOH}+\mathrm{CH}{3}_1\mathrm{NH}{2}_2$

Answer: (A)

Verified step by step guidance

1. Identify the reactant: N-methylacetamide has the structure CH\_3CONHCH\_3, where the amide functional group is present.
2. Recall that acid hydrolysis of an amide involves breaking the C-N bond in the amide under acidic conditions, producing a carboxylic acid and an ammonium salt.
3. Write the general acid hydrolysis reaction for an amide: amide + H\_2O + acid (HCl) \rightarrow carboxylic acid + ammonium salt (protonated amine) + Cl\^-.
4. Apply this to N-methylacetamide: CH\_3CONHCH\_3 + H\_2O + HCl \rightarrow CH\_3COOH + CH\_3NH\_3\^+ + Cl\^-.
5. Check the options for the equation that shows the amide reacting with water and HCl to give acetic acid (CH\_3COOH) and the methylammonium chloride salt (CH\_3NH\_3\^+ Cl\^-), confirming the correct acid hydrolysis equation.