Red ink is prepared from

  • A
    Phenol
  • B
    Aniline
  • C
    Congo red
  • D
    Eosin

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Which of the following is a basic dye?

The compounds used to fix a dye to the fabric are known as:

The dyes which are applied to the fabric in the colourless reduced state and then oxidised to the coloured state are called:

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Molybdenum compounds are used in

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