Match List-I with List-II and select the correct answer using the code given below the Lists :List-I
(Constituent of Paint)List-II
(Example)A. Pigment 1. Zinc oxide B. Extender 2. China clay C. Thinner 3. Naphthenate D. Drier 4. Turpentine
A-1, B-2, C-4, D-3
Each paint constituent is matched with a substance that performs that role in a paint formulation.
| List-I | Constituent | List-II Match | Reason |
|---|---|---|---|
| A | Pigment | 1. Zinc oxide | Zinc oxide is a common white pigment that gives paint its colour and opacity. |
| B | Extender | 2. China clay | China clay (kaolin) is added as a cheap extender/filler to increase bulk and improve texture. |
| C | Thinner | 4. Turpentine | Turpentine oil is a volatile solvent used to thin paint and adjust its consistency for application. |
| D | Drier | 3. Naphthenate | Metal naphthenates (e.g., cobalt/manganese naphthenate) act as driers that accelerate the oxidation and hardening of the paint film. |
Hence, the correct matching is A-1, B-2, C-4, D-3.
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