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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.
What is difference between silica used in TLC and HPLC column? TLC is called thin layer chromatography. The simple technique works on the principle of adsorption, where as HPLC i
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Product Optimization Sensory analysis during this phase of product development is critical and includes extensive evaluation with many kinds of tests, each playing a specific
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For d electrons, the azimuthal quantum number is: (1) 0 (2) 1 (3) 2 (4) 3 Ans: 2
A Galvanic cell or voltaic cell or electrochemical cell is a system in which a spontaneous chemical oxidation- reduction happens and makes electrical energy.
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