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Classification of dyes according to their application
Direct dyes:
this type of dyes can be directly applied to the fiber, both vegetable and animal, by dipping in hot aqueous solution of the dye. This type of dyes is most significant for those fabrics that can form hydrogen bonds, that is for rayon, wool, silk, cotton and nylon. Congo and Martius yellow red work as direct dyes. Instances are: Martius yellow, congo red.
Why does lycopene absorb at loner wavelength than beta carotene though both have same number of double bonds?
Name: Cyclohexane Formula: C6H12 Molar mass: 84.16 g/mol Density: 779.00 kg/m³ As it''s density is less than that of water, it floats on water rather than sinking.
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i) Define a membrane in a process engineering context. Two of the main desired attributes of membranes are high permeability and high selectivity. Define permeability and select
Convert cyclohexene to hexene diamide
Criteria for determining the purity of organic compounds
How many grams of silica gel and plaster of paris and volume of water is needed to have a preparative TLC?
commercial cells
does the nature of the anode rays depend upon the nature of the discharge tube and the nature of the electrode?
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