Question

Match List I with List II 

Choose the correct answer from the options given below: 
 

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

Hint:

Milk Adulteration Detection Tests:
Turmeric paper = Ammonium salts Boric acid
Hehner test = Formalin (Violet ring)
Rosalic acid test = Neutralizers (Rose-red)
Resorcinol test = Sucrose Cane sugar (Red).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Chemical qualitative detection tests for adulterants in milk.

Step 2: Detailed Explanation:
Matching qualitative adulteration detection tests in List I with adulterants in List II:
- A. Turmeric Paper Test: Color test turning red/brown in alkaline media or used for detecting III. Ammonium salt (and boric acid/borax).
- B. Hehner Test: Concentrated $\text{H}_2\text{SO}_4 + \text{FeCl}_3$ test producing a violet ring for IV. Formalin preservative.
- C. Rosalic Acid Test: Qualitative indicator test producing a rose-red color in the presence of added alkaline II. Neutralizer (sodium bicarbonate, sodium carbonate, NaOH).
- D. Resorcinol (Seliwanoff's) Test: Resorcinol in concentrated $\text{HCl}$ boiling test developing a deep red color for added I. Sucrose (cane sugar).
Matching sequence: A-III, B-IV, C-II, D-I.

Step 3: Final Answer:
Hence, the correct matching is A-III, B-IV, C-II, D-I, matching option (D).