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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.
The quantum number which specifies the location of an electron as well as energy is : (1) Principal quantum number (2) Azimuthal quantum number (3) Spin quantum number
Q. Show Electron Dot Diagrams for Covalent Bonds? Ans. Electron dot diagrams for covalent bonds In covalent bonds, atoms share electrons in such a manner that each atom
In chemistry, an ideal solution or ideal mixture is a solution with thermodynamic properties analogous to those of a mixture of ideal gases. The enthalpy of solution (or "enthalpy
Characteristic flame colour: specific metals and their salts impart particular colours to Bunsen burner flame. (1) Pb (plumbum) impart pale greenish colour to the f
giving correct formulas give the reactantsand products in the formation of poly2 butane
what are the applications of borazole
How can we control the product yield of the Benkeser reaction?
It is Hydrated Potassium Aluminium Sulfate [ KAl(SO4)2·12H2O ].
ACID-BASE TITRATIONS Titration curves: An acid-base titration is a useful experimental method for determining also the amount of an unknown acid or base in solution and th
describe the construction and the working of the calomel electrode
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