Which of the following statements is true? (Rajyaseva Pre 2014)
(a) Indigo - blue is a natural dye.
(b) Alizarin is a synthetic dye.
Both true
Both false
(a) false, (b) true
(a) true, (b) false
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go