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question_answer1) An azo dye is fixed on fabrics by the process applicable in
question_answer2) Red ink is prepared from
question_answer3) The blue print process involves the use of
question_answer4) An azo dye is formed by interaction of an aromatic diazonium chloride with
question_answer5) Alizarin belongs to the class of
question_answer6) An insoluble coloured compound formed by action of metallic salts on dyes is known as
question_answer7) Alizarin dye obtained from the root of madder plant is anthraquinone derivative. Its structure corresponds to
question_answer8) To which class of dyes does phenolphthalein belong
question_answer9) Alizarin a mordant dye is not used in [CPMT 1990]
question_answer10) The rose odour from an ester is formed by the action of HCOOH on
question_answer11) Which of the following is dye
question_answer12) Which of the following is an example of basic dye
question_answer13) Which of the following is a direct dye
question_answer14) Which of the following is a vat dye and often used in dyeing jeans
question_answer15) Which of the following is not a chromophore
question_answer16) The compounds used to fix a dye to the fabric is known as
question_answer17) Which one is disperse dye
question_answer18) Malachite green is a direct dye for silk and wool. It is prepared by condensing
question_answer19) Fluorescin, a well known dye is obtained by the reactions of
question_answer20) Indigo shows cis-trans isomerism. Which is the stable form of Indigo
question_answer21) Which is the wrong statement with regards to Indigo
question_answer22) Which of the following structures represents a colourless substance
question_answer23) Identify the wrong statement regarding alizarin
question_answer24) Methyl orange is an indicator in acid-alkali titration. It gives
question_answer25) A dye imparts red colour on fabric. What colour of light was absorbed by the dye
question_answer26) Which of the following is an azo dye [Delhi CEE 1996]
question_answer27) An example of anthraquinone dye is [Haryana CEET 1999]
question_answer28) Which of the following is a basic dyes [Pb. PMT 1998; AFMC 2004]
question_answer29) The dyes which are applied to the fabric in the colourless reduced state and then oxidised to coloured state are called [DPMT 2004]
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