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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
Please explain the calculations involved in Kjeldahl''s method for estimating nitrogen
4.4g of a gas at stp occupies a volume 2.27l. The gas is
electrophilic substitution reactions and mechanisms
what are macroscopic properties ?
what is the name materyal of use in plate choromatgraphy
Miller indices of the diagonal plane of a cube are (110)
The nucleus of the element 21 E 45 contains: (1) 45 protons and 21 neutrons (2) 21 protons and 24 neutrons (3) 21 protons and 45 neutrons (4) 24 protons and 21 n
y LAH is strong reducing agent than NaBh4?
Al(C2O4)3 3-
The formal charge on the hydrogens are The formal charge on all the hydrogens is 0. For the other atoms: (a) Nitrogen has a complete octet and a formal charge of 0. (b) B
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