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Which of the following compounds is ionic:
(1) Kl
(2) CH4
(3) Diamond
(4) H2
Ans: Kl
The energy of an electron revolving in n th Bohr's orbit of an atom is given by the expression; (1) E n = 2Π 2 me 2 z 2 /n 2 h 2 (2) E n = 2Π 2 m
How many KCal of heat are liberated when 48.0 grams of iron are burned to form Fe2O3 at standard state conditions? (Change of Hf^0 of Fe2O3 is -197 kCal/Mole )
chemical prooperties of aldehydes?
sulphuric acid can be made with concentration of 99%. However for different industrial process different concentration are used. For a specific industrial requirement, 62% H2SO4 is
The mass of CaCl2 (molar mass= 111.0) required to prepare 75.00 milliliters of a 2.000 molar solution of this salt is?
what is equevalent weight of Nacl
Q. Early Theories of Matter? In ancient Greece philosophers discussed the nature of matter. The philosopher Democritus held that matter was composed of elementary particles cal
Q. Show the properties of Aluminium Oxide ? Aluminium oxide, Al 2 0 3 is a highly ionic compound of aluminium. It is also known as alumina. As you have studied earlier, it occ
Reformatsky reaction - Aldehydes and Ketones Reformatsky reaction has the treatment of aldehyde and ketone along with a bromo acid ester in existence of metallic zinc to form -
what is the graph between magnification and image distance for a convex lens..and how can we find the focal length for the lens using the graph? Ans) The distance between the len
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