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What is Malachite green dye? Explain its...

What is Malachite green dye? Explain its preparation?

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Benzaldehyde condenses with tertiary aromatic amines like N, N - dimethyl aniline in the presence of strong acids to from triphenyl methane dye or malachite green dye.
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SURA PUBLICATION-CARBONYL COMPOUND-SHORT ANSWER
  1. How are the following conversions carried out ? (i) benzaldehyde fr...

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  2. How are the following conversions carried out ? (i) benzaldehyde fr...

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  3. Write a note on (i) Perkins reaction, and (ii) Knoevenagal reaction.

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  4. Write a note on Knoevenagal reaction.

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  5. An organic compound, C(2)H(4)O gives a red precipitate when warmed wit...

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  6. What happens when the following compounds are treated with dilute NaOH...

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  7. What happens when the following compounds are treated with dilute NaOH...

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  8. Write short notes on Propoff's rule.

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  9. How will you convert benzaldehyde to C(6)H(5)COOH

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  10. How will you convert benzaldehyde to C(6)H(5)CH(2)OH

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  11. How will you convert benzaldehyde to C(6)H(5)CH(3)

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  12. Organic compound with molecular formula C(3)H(6)O has two isomers (A) ...

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  13. What is Malachite green dye? Explain its preparation?

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  14. Predict the product when calcium ethanoate and calcicum methanote are ...

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  15. Formic acid reduces Tollen's reagent, but acetic acid does not-Give re...

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  16. What is acidity constant? How is it expressed.

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  17. Write the structure of 'A' and 'B' in the following reaction. C(6)H(...

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  18. Complete the following reactions CH(3)COCl+NH(2)to

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  19. Complete the following reactions CH(3)COCl+C(2)H(5)OHto

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  20. Give the IUPAC names for the following : (i) Crotonaldehyde (ii) M...

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