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The Bohr orbit radius for the hydrogen atom (n=1) is approximately 0.530 Å . The radius for the first excited state (n=2) orbit is: (1) 0.13Å
An isostere is: (1) NO -2 and O 3 (2) No -2 and PO 3- 4 (3) CO 2, N 2 O, NO - 3 (4)Clo - 4 and OCN - Ans: NO -2
Physical properties of Phthalic Acid (a) Phthalic acid is colourless crystalline substance. (b) Phthalic acid's melting point is not sharp (195-213°C). (c) Phthalic acid
(a) What is hardness of water? What do you understand by temporary and permanent hardness? OR Explain tempora
Q. Define Oxidation state of an atom? Oxidation State: Oxidation state of an atom is defined as an apparent or formal charge on that particular atom in a molecule. In majorit
What is the difference between reaction stoichiometry and composition stoiciometry?
Q. What are Hexahalides? Hexahalides: S, Se-and Te react with excess of fluorine to give the corresponding hexafluorides. Fluorine being the most electronegative oxidises the
i need email tutor who has good background on geopolymer cement to explain it for me such as the geopolymerisation process and fly ash composition by skype or Yahoo or hotmail i ne
Metal absorption by reusable material ?
how to calculate styx number
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