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Explain and Define standard feat of formation
Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in their standard state is known as standard heat of formation ( Hf *)
its preparation
WHAT IS ENVIRONMENTAL CHEMISTRY?
When the value of azimuthal quantum number is 3, magnetic quantum number can have values: (1) + 1, 0, - 1 (2) + 2, + 1, 0, - 1, - 2 (3) - 3, - 2, - 1, - 0, + 1
The number of electrons in the valence shell of calcium is: (1) 6 (2) 8 (3) 2 (4)4 Ans: 2
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Aldehyde is a carbonyl compound in which one valency of carbonyl carbon is satisfied by hydrogen atom and other by a alkyl group.
stephin reaction in hindi.
a hittorf cell fitted with Ag-AgClis filled with HCl solution that contains 0.0003856g HCl/g water. A current of 2 mA is passed for exactly 3 hours. the solutions are withdrawn, we
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