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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.
Citrus Fruits A large number of constituents in citrus products have been shown to be capable of preventing or alleviating diseases and promoting health. Vitamin C, E, and car
Explain the qualitative analysis of the basis radical using the concept of solubility, solubility product and common ion effect?
explain industrial manufacturing process of westron
construction of dry cell
(a) How is aniline obtained from benzene? (b) Why are the secondary amines more basic than primary amines? Describe. (c) Write the complete chemical reactions for the convers
Which type of compounds give witting reactions
a dot placed inside a lamp symbol shows
(a) Discuss, with the aid of diagrams, and with suitable examples, the chemistry (including half-cell reactions), construction and principles of the following electrode types: (
A medicine dropper is an instrument used to calculate small amount of liquids, usually in milligrams.
How Dalton''s Atomic theory explains these laws..
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