Question

How do you dye thread black in colour?

• A. By adding iron filings to vinegar.
• B. By soaking thread in Alizarin paste and allowing it to dry.
• C. By adding iron filings to the Alizarin paste.
• D. By soaking thread in Tumeric paste.

Answer 1

The correct option is A By adding iron filings to vinegar.

Yarn is dyed black by the following steps:

• Soak the yarn in a mixture of castor oil and alkaline Earth.
• Allow it to dry.
• For black colour, add iron filings to vinegar.
• Soak and let it try.