A solution of $\mathrm{m}-$ chloroaniline, $\mathrm{}\mathrm{m}-$ chlorophenol and $\mathrm{m}-$ chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of $\mathrm{N}\mathrm{a}\mathrm{H}\mathrm{C}{\mathrm{O}}_3$ to give fraction $\mathrm{A}$ . The left over organic phase was extracted with dilute $\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}$ solution to give fraction $\mathrm{B}$ . The final organic layer was labelled as fraction $\mathrm{C}$ . Fractions $\mathrm{A},\mathrm{}\mathrm{B}$ and $\mathrm{C},\mathrm{}$ contain respectively:

• A

  $\mathrm{m}-$ chlorobenzoic acid, $\mathrm{}\mathrm{m}-$ chloroaniline and $\mathrm{m}-$ chlorophenol
• Correct answer
  B

  $\mathrm{m}-$ chlorobenzoic acid, $\mathrm{}\mathrm{m}-$ chlorophenol and $\mathrm{m}-$ chloroaniline
• C

  $\mathrm{m}-$ chlorophenol, $\mathrm{}\mathrm{m}-$ chlorobenzoic acid and $\mathrm{m}-$ chloroanilinc
• D

  $\mathrm{m}-$ chloroaniline, $\mathrm{}\mathrm{m}-$ chlorobenzoic acid and $\mathrm{m}-$ chlorophenol

Hence, the correct answer is option: 'B'.