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Chemical in cosmetics
The phrase cosmetics are taken from the Greek word Kosmetikos. The meaning of this is decorating. Beautifying or enhancing complexion of skin. In middle asia from the ancient times Henna has been employed to decorate hands and few other parts of the body. Some of the cosmetics that find make use in daily life are illustrated below,
(1) Creams
(a) Cleansing creams
(b) Cold creams
(c) Vanishing creams
(d) Sunburn creams
(e) Bleach cream
Beginning in the early nineteenth century, scientists developed models to explain the structure of the atom. As more information was discovered about the nature of the subatomic pa
What gas form by the hydrolysis of CaCN 2 ? Write down the equation of the reaction of CaCN 2 with water.
Q. Show the Properties of diborane? Diborane is a colourless gas (b. p., 183K). It is rapidly decomposed by water with the formation of H 3 B0 3 and H 2 : B 2 H, + 6H 2 0 -
what are raw material?
The maximum number of electrons present in an orbit l= 3 , is: (1) 6 (2) 8 (3) 10 (4) 14 Ans: 14
Production Sensory analysis does not stop after the product has been developed and is being produced routinely. However, it is critical that products continue to be analyzed
What is sublimation?
Energy of orbit: (1) Increases as we move away from nucleus (2) Decreases as we move away from nucleus (3) Remains same as we move away from nucleus (4)None of the
what is sp- sp bonding
describe iron exchange process
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