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Q29 (CDS-II/2014) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Applied everyday chemistry Answer Verified

Chromium oxide in paints makes the colour of paint

Result
Your answer: —  Â·  Correct: A
Explanation

Chromium oxide, specifically chromium(III) oxide (Cr2O3), is a widely used inorganic pigment known for its distinct green color. It is frequently referred to in the industry as "chrome green" or "chromium oxide green". This compound is highly valued in paint manufacturing due to its exceptional chemical stability, lightfastness, and resistance to weathering [1]. It is an odorless, bright green powder that remains insoluble in water and stable at high temperatures, making it ideal for industrial applications such as painting military vehicles and coloring glass or ceramics. While other chromium compounds can produce various colors, the specific oxide Cr2O3 is the primary single-component pigment used to achieve a durable green hue in paints and inks [1].

Sources

  1. [1] https://www.sciencedirect.com/science/article/abs/pii/S0272884213010663
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SIMILAR QUESTIONS

NDA-II · 2013 · Q77 Relevance score: 8.34

Chromium oxide is used as an ingredient in paints to obtain

NDA-II · 2011 · Q33 Relevance score: 2.06

Match List I with list II and select the correct answer using the code given below the lists : List-I (Metallic oxide) A. Uranium oxide B. Cuprous oxide C. Cobalt oxide D. Chromium oxide List-II (Colour imparted to glass) 1. Red 2. Blue 3. Green 4. Yellow Code : A B C D

NDA-II · 2008 · Q51 Relevance score: 1.58

Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Substance added) A. Chromium (III) oxide B. Cobalt (II) oxide C. Cuprous oxide D. Manganese dioxide List-II (Colour imparted to glass) 1. Red 2. Violet 3. Green 4. Blue Codes: A B C D

NDA-I · 2021 · Q86 Relevance score: -1.59

Which one of the following colours may be obtained by combining green and red colours?

CAPF · 2011 · Q35 Relevance score: -2.26

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