UPSC CAPF AC 2026 Paper 1 · Question 105

Question 105 of the UPSC CAPF (AC) 2026 Paper I (19 July 2026). Try it first, then open the answer and explanation.

CAPF 2026 · P-I · Q105 · General Science · Chemistry
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
1. A-1, B-4, C-2, D-3
2. A-1, B-2, C-4, D-3
3. A-3, B-2, C-4, D-1
4. A-3, B-4, C-2, D-1
सूची-I को सूची-II के साथ सुमेलित कीजिए और सूचियों के नीचे दिए गए कूट का प्रयोग कर सही उत्तर चुनिए : सूची-I (रंग का घटक) सूची-II (उदाहरण) A. वर्णक (Pigment) 1. ज़िंक ऑक्साइड B. आयतनवर्धी (Extender) 2. चीनी मिट्टी C. तनुकारक (Thinner) 3. नैफ्थेनेट D. शुष्कक (Drier) 4. तारपीन
1. A-1, B-4, C-2, D-3
2. A-1, B-2, C-4, D-3
3. A-3, B-2, C-4, D-1
4. A-3, B-4, C-2, D-1
Show answer
Answer: (2) A-1, B-2, C-4, D-3
उत्तर: (2) A-1, B-2, C-4, D-3
Zinc oxide is a white pigment that gives colour and covering power (A-1); china clay (kaolin) is an extender (filler) that adds bulk and lowers cost (B-2); turpentine is a thinner that reduces viscosity so the paint spreads easily (C-4); and metal naphthenates (e.g. of cobalt, lead or manganese) are driers that speed up the oxidation and hardening of the drying oil (D-3).

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