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Indicate the nature of bonding in diamond:
(1) Covalent
(2) Ionic
(3) Coordinate
(4) Hydrogen
Ans: Covalent
The ratio of the energy of a photon of 2000Å wavelength radiation to that of 4000 Å radiation is: (1) 1/4 (2) 4 (3) 1/2 (4) 2 Ans
1. Express 95 mg/l of Ca 2+ as milligrams per liter of CaCO 3 . 2. Express 221 mg/l of Ca(HCO 3 ) 2 as equivalents per liter of CaCO 3 . 3. Determine the concentration o
what are macroscopic properties ?
It can be because these group tend to decrease the electron density when attached to a benzene or other ring structure preferentially at ortho and pera position.
Difference between activity coefficient and mean activity coefficiet
interpretation ande of errors in differential thermal analysis
Q. How to produce Nitrogen on Industrial Level? Ans. Nitrogen is produced by the fractional distillation of liquid air. Air is cooled to liquefy it. The liquid is then all
The difference in the mass of 100 moles of sodium atoms and sodium ions is 5.48002grams .compute the mass of an electron
limitations of distribution law
Q. Discuss the EDTA method of determining hardness of water. OR What is hardness of Water? How it is determined by EDTA
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