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Dyes
Dye is a synthetic and natural colouring matter that is employed in solution to stain materials particularly fabrics. All the coloured substances are not dyes. A coloured substance is known as a dye if it fulfills the subsequent conditions,
1. It should have an appropriate colour.
2. It may be lasting on the fabric either directly or with the help of mordant.
3. while fixed it must be fast to light and washing, that is it has to be resistant to the action of acids, water and alkalies, majorly to alkalies as washing soda and soap have alkaline nature.
What is anionic intermediate The spectrum is consistent with the formation of an anionic intermediate-a stable Meisenheimer complex. (The dotted lines symbolize resonance delo
The process of chromatography involves passing a mixture dissolved in the "mobile phase" through a stationary phase, which separates the analyte which is to be measured from the ot
Highest melting point would be of: (1) He (2) CsCl (3) NH 3 (4) CHCl 3 Ans: CsCl
Electron transfer is the easiest type of redox process, an example being A majority of reactions of that type are very fast, but oxidation by some complexes (especially of
Construction and working of calomel electrode with a labelled diagram
if the electon in hydrogen atom is exited to n=5 the number of diffrent frequency of radiations which may be exited is
what is law of defenit propotion
What would be the benefit of knowing where the electrons are at any time?
What is monohaptacity dihaptacity etc ...
y LAH is strong reducing agent than NaBh4?
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