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Q. Explain about Extraction of metals? Extraction of metals is very often done by complex formation. For example, the cyanide process for the extraction of silver and gold is w
how do you calculate the concentration of hcl solution if you are the mass of sodium carbonate and the volume of its solution and the volume of the pipetted solution and the volume
which of the properties of atoms of elements is the whole number/
please tell the observation & inference, when ammonium phosphate (NH4)3PO4 undergoes charcoal cavity test & cobalt nitrate test.....
Which of the following electron transition in a hydrogen atom will require the largest amount of: (1) From n-1 to n=2 (2) From n= 2 to n=3 (3) From n= ∞ to n=
Write the formula and name the example of k peroxide
Q. What do you understand by dissolved oxygen in water? How does it create trouble in boiler? Give chemical methods with suitable reactions to remove it from the water. Ans.
which is the main postulate of bohr''s model of atom
5Mol K+
Electron occupies the available orbital singly before pairing in any one orbital occurs, it is : (1) Pauli's exclusion principle (2) Hund's Rule (3) Heisenberg's principle
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