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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.
Number of unpaired electrons in inert gas is: (1) Zero (2) 8 (3) 4 (4) 18 Ans: Zero
1(a). In these reactions, I2 (in the iodine solution) has what oxidation number? 1(b). The iodine starch reaction that turns purple depends on iodine being in the I- state. Was
Q. What do you mean by Isotopes? Isotopes and mass number although all atoms of an element have the same number of protons most elements have atoms with different numbers of ne
H2O is liquid buy why H2s gas? who it is one group.
The chemical reaction at one time the rate of forward and backward reaction becomes equal that state is known as Equilibrium state.
Structure and IUPAC name of K3[Al(C2O4)3]
ACCOUNT FOR THE STABILITY OF CONJUGATED DIENES
Q. Iron chloride forms various solid hydrates, all of which melt congruently. The temperatures t of aqueous solutions of various compositions that are saturated with respect to a s
Explain cis- and trans-3-hexene Both cis- and trans-3-hexene should give the similar one alkyl halide product when they react with HI, and both would undergo catalytic hydroge
in which state carbon exist
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