What is the chemical structure of indigo?

• C14H10N2O3

• C16H12N2O2

• C16H10N2O2

• C15H9N3O2

How is indigo dye traditionally produced?

• Indigo dye is synthesized from synthetic chemicals in a lab.

• Indigo dye is made from the roots of the indigo plant.

• Indigo dye is traditionally produced from the leaves of the indigo plant through fermentation.

• Indigo dye is produced by boiling the flowers of the indigo plant.

What are the historical uses of indigo in textiles?

• Indigo was primarily used for making paper in ancient cultures.

• Indigo was a popular flavoring agent in medieval cuisine.

• Indigo was mainly used for creating pottery decorations.

• Indigo has been historically used for dyeing textiles, particularly in ancient Egypt and India, and became popular in Europe for fabrics like denim.

Which plants are known to produce indigo naturally?

• Quercus robur

• Corylus avellana

• Indigofera tinctoria, Isatis tinctoria, Polygonum tinctorium

• Rosa rubiginosa

What impact did indigo have on global trade in the 18th century?

• Indigo significantly boosted global trade by increasing demand for the dye, enhancing trade routes, and impacting agricultural practices.

• Indigo had no effect on trade during the 18th century.

• Indigo was primarily used for food coloring, not trade.

• Indigo decreased the demand for other dyes, harming trade.