Question

Indigo is used in the}

• A. perfumery industry
• B. pharmaceutical industry
• C. dyeing industry
• D. food industry

Hint:

Indigo = blue dye used in textiles (especially jeans)—a classic GK question.

Answer 1

The Correct Option is C

Concept: Indigo is a natural dye obtained from plants like \textit{Indigofera} and is widely used for coloring fabrics. Step 1:Understand its primary use.
Indigo is mainly used as a blue dye, especially in:

• Textile industry
• Denim (jeans) production

Step 2:Eliminate incorrect options.}

• Perfumery $\rightarrow$ Not related
• Pharmaceutical $\rightarrow$ Not a primary use
• Food industry $\rightarrow$ Not used

Final Answer: \[ {\text{dyeing industry}} \]