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Ingrain dyes (developed dyes) -
Ingrain dyes are those that are synthesised straight on the fabric. Instances of this type of dyes are azo dyes. In this the fabric is wrapped up in the solution of coupling reagent commonly a phenol or naphthol. After that it is dished in the solution of appropriate diazonium salt. Both react to make the dye whose molecules are adsorbed on the surface of fabric. The ingrain dyeing is chiefly appropriate for cotton fabrics.
Q. Describe about Coordination compounds? The complexes show a wide variety of physical and chemical properties which are quite different from normal salts. These differences
(a) Assign a reason for each of the following statements: (i) Alkylamines are stronger bases than arylamines. (ii) Acetonitrile Is preferred as solvent for carrying out sever
Electrolysis of Water without Indicator • Assemble the power supply for electrolysis. Attach alligator clips to the separate poles of the battery. Make sure that the wires from
tie line explain in with the help of phase rule
Q. Show Occurrence Extraction of group 16? Oxygen is the most abundant of all elements on earth. Dry air contains 20.946% oxygen by volume in the free form. Oxygen forms about
The quantum numbers for the outermost electron of an element are given below as n= 1, l=0, m=0, s = 1/2 . The atoms is: (1) Lithium (2) Beryllium (3) Hydrogen (4)
Explain about the Defect breakdown It is because of cracks and pores at the surface. Moisture from atmosphere can collect on the surface and result in breakdown. Glazing is
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The Crystal Field Theory experiment shows the effects on metal d orbital energies of moving a set of negative point charges close to a metal ion. As one would expect, the energies
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