Question

A dye is prepared from
1) sida
2) tridax
3) tephrosia
4) indigofera
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Answer 1

I guess 4 indigofera

Answer 2

Answer:

4) indigofera

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Explanation:

Indigofera belongs to the pea family which is the flowering plants. Many species of the Indigofera are used in the manufacturing of dyes. A dye is a substance that is colored and used to color the fibers. They dissolve in water and they are used to color the fabrics. Indigo is one of the major dying substance.