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Which geometry does have Formaldehyde molecule The formaldehyde molecule has trigonal planar geometry. Therefore, both the H-C-H bond angle and the H-CAO bond angle are abou
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The de-Broglie wavelength associated with a material particle is: (1) Directly proportional to its energy (2) Directly proportional to momentum (3) Inversely proportiona
Illustrate process of extrusion. In this process a round heated billet of metal which is placed in a container is forced out through a die in a press. This process is normally
Uses of methane - Alkanes (1) In the development of compounds such as formaldehyde, methyl chloride, methyl alcohol, chloroform, carbon tetrachloride, etc. (2) In the prepar
Properties and uses of D.D.T. (i) D.D.T. is approximately insoluble in water although it is moderately soluble in polar solvents. (ii) D.D.T. is a powerful insecticide. It i
There are five d-orbitals totally existed. These are designated as d xy , d yz , , d xz , and . The shapes of these orbitals are explained below: The three or
two reasons why is it necessary to ionise chromium atomsin a sample
(a) Starting from a sample of chromate ore, how is potassium dichromate prepared? Explain all the steps included with chemical equations. (b) Write the balanced chemical equatio
ELECTROCHEMICAL CELLS Galvanic and electrolytic cells: The difference between potential of the two metals results in a potential difference (also called a electromotive fo
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