Basics of Chemistry
Quick practice
Question 1 of 5
Which of the following statements is true? (Rajyaseva Pre 2014)
(a) Indigo - blue is a natural dye.
(b) Alizarin is a synthetic dye.
A
(a) false, (b) true
B
(a) true, (b) false
C
Both false
D
Both true
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