Question

Match List-I with List-II
List-I (Preservative) & List-II (Reagent used in the Test)
(A) Boric Acid & (I) Stannous chloride
(B) Formaldehyde & (II) Paraphenylenediamine
(C) Hydrogen Peroxide & (III) Ferric chloride
(D) Hypochlorite & (IV) Turmeric Paper

Choose the correct answer from the options given below:

• (A) - (III), (B) - (IV), (C) - (II), (D) - (I)
• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
• (A) - (IV), (B) - (III), (C) - (II), (D) - (I)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

To remember key preservative tests:
- Boric Acid $\rightarrow$ Turmeric Paper (red-brown color change).
- Formaldehyde $\rightarrow$ Ferric Chloride (Hehner's purple ring).
- \(\text{H}_2\text{O}_2\) $\rightarrow$ Paraphenylenediamine (peroxidase-driven blue color).

Answer 1

The Correct Option is C