Chromium oxide in paints makes the colour of paint

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Q: 29 (CDS-II/2014)
Chromium oxide in paints makes the colour of paint

question_subject: 

Science

question_exam: 

CDS-II

stats: 

0,42,33,42,9,14,10

keywords: 

{'chromium oxide': [0, 0, 0, 2], 'paints': [0, 0, 2, 4], 'paint': [0, 0, 1, 4], 'colour': [11, 6, 13, 28], 'blue': [0, 1, 0, 0], 'green': [4, 0, 4, 6], 'red': [1, 0, 0, 0], 'white': [0, 0, 4, 3]}