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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.
Resonance effect - Effect of substituents on acidity Same as inductive effect, if the resonance producing group exerts minus effect that is, if it withdraws electrons, it raise
please teach me organic chemistry in a better that i could get 99 percent marks
compound reacts with oxygen to form 2 oxide x and y. or analysis 1.535g of x yielded 1.365g of copper and 1.545g of y yielded 1.6 a.determine the chemical compound of x and y.b .
WHAT IS THE IUPAC NAME OF K4[FeO4]
What are the compositions of the equilibrated top Layers? Figure is a temperature-composition phase diagram for the binary system of water (A) and phenol (B) at 1 bar. These li
What is the principle of determining acid insoluble ash content of flour
Preparation of alkane
Electronic configuration of H - is : (1) 1s 0 (2) 1s 1 (3)1s 2 (d) 1s 1 , 2s 1 Ans: 1s 2
Which one has zero oxidation state in s block
Making a model hydraulic elevator Some freight and passenger elevators are increased by water pressure. You can make a model of one of these with an automobile hand pump. Conne
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