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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
explain resonance with examples.
brief explanation of claudes method of liquefication of g gases
State the Functions of oxide layer (i) To mask against diffusion or ion-implant, (ii) To passivate surface electrically and chemically. (iii) To isolate one device from a
Synthesis of glutaraldehyde
give answer
first two groups are metal but why hydrogen is placed in first group
Trans -Isomer of a substance is more stable than Cis-Isomer.
what are raw material?
How many types of colloidal system? and which are they?
what are chemical properties of haloarenes?
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