Match List I with List II and select the correct answer using the code given below the lists : List I A. Iron oxide B. Varnish C. Enamel paint D. Emulsion paint List II 1. Glossy finish on wood and steel 2. Colourless shining protective coating on wood 3. Exterior and interior brick walls 4. Preparatory coating on steel Code : A BCD

The matching of paints and coatings is based on their chemical properties and industrial applications. Iron oxide (A) is primarily used as a red oxide primer, serving as a preparatory coating on steel to prevent corrosion [t2, t4]. Varnish (B) is a transparent, colourless, and shining protective coating applied to wood to enhance its natural grain [t2, t6]. Enamel paint (C) is an oil-based coating that provides a hard, durable, and glossy finish on both wood and steel surfaces [t1, t3]. Emulsion paint (D) consists of acrylic or vinyl polymers in a water base, making it the standard choice for exterior and interior brick walls due to its ease of application and durability [t1]. Therefore, the correct sequence is A-4, B-2, C-1, D-3.