Match List I with List II \(\begin{array}{|l|l|l|l|} \hline & \text{ List - I (Test) } & & \text{List - II (Observation)} \\ \hline \text { A. } & \mathrm{Br}_2 \text { water test } & \text { I. } & \text { Yellow orange or orange red precipitate formed } \\ \hline \text { B. } & \text { Ceric ammonium nitrate test } & \text { II. } & \text { Reddish orange colour disappears } \\ \hline \text { C. } & \text { Ferric chloride test } & \text { III. } & \text { Red colour appears } \\ \hline \text { D. } & 2,4 \text { - DNP test } & \text { IV. } & \text { Blue, Green, Violet or Red colour appear } \\ \hline \end{array}\) Choose the correct answer from the options given below:

• A

  A-III, B-IV, C-I, D-II
• B

  A-I, B-II, C-III, D-IV
• C

  A-IV, B-I, C-II, D-III
• Correct answer
  D

  A-II, B-III, C-IV, D-I

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