Question

Which one is strongest acid

• A. $\mathrm { CH } _ { 2 } \mathrm { FCOOH }$
• B. $\mathrm { CH } _ { 2 } \mathrm { ClCOOH }$
• C. $\mathrm { CHCl } _ { 2 } \mathrm { COOH }$
• D. $\mathrm { CHF } _ { 2 } \mathrm { COOH }$

Answer 1

Answer: (D)

$\mathrm { CHF } _ { 2 } \mathrm { COOH }$

Answer 2

$\mathrm { CHF } _ { 2 } - \mathrm { COOH }$. Difluoroacetic acid is strongest because presence of two $F$ atoms increases its acidic nature.