Question

Neel is obtained from –
1) Aconitum heterophyllum 2) Indigofera tinctoria
3) Haematoxylon compechianum 4) Crocus sativus

Answer 1

3.haematoxylon compechianum

Answer 2

Answer:

Dye(Neel) is obtained from the processing of the plant's leaves (Indigofera tintoria). They are soaked in water and fermented in order to convert the glycoside indican naturally present in the plant to the blue dye indigotin. The precipitate from the fermented leaf solution is mixed with a strong base such as lye.

ans: 2)Indigofera tinctoria

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