2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Chemistry in Everyday Life / दैनिक जीवन में रसायन

JEE Main & Advanced Chemistry Chemistry in Everyday Life / दैनिक जीवन में रसायन Question Bank Dyes and Pigment

  • question_answer
    The dyes which are applied to the fabric in the colourless reduced state and then oxidised to coloured state are called [DPMT 2004]

    A)                 Vat dyes             

    B)                 Disperse dyes

    C)                 Triphenyl methane dye

    D)                 Azo dyes

    Correct Answer: A

    Solution :

                    Vat dyes are insoluble compounds which reduction give soluble (leucoform) product. The product may be either coloured or colourless a have affinity for specific fabrics e.g. Indigo.


You need to login to perform this action.
You will be redirected in 3 sec spinner