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The frequency of one of the lines in Paschen series of hydrogen atom is2.340x10 11 Hz. The quantum number n 2 which produces this transition is: (1) 6 (2) 5
What is the percentage of light that is engaged by the sample after a path length of 1 µm? Calculate the number of photons per second absorbed by the sample. T
Q. Explain about Neutral and Amphoteric oxides? Neutral oxides have neither acidic nor basic properties and when dissolved in water, they give neutral solutions, e.g., CO, N
Oxidation Reduction Titrations The titrations based upon oxidation-reduction reactions are termed redox titrations. The chemical reactions proceed along with transfer of electr
give an clear explanation about kohlrauschs law
a) Describe why not all of the organic matter in wastewater is converted to carbon dioxide and water in biological treatment. b) What is the importance of the BOD in the charact
Q. in radioactive decay, a nucleus emits an alpha particle and two beta particle successively. show that the final nucleus is an isotope of original nucleus. Ans: Let the mass and
how to find atomicity of an element
Q. What are the De Broglies waves? Bohr anticipated that hydrogen's single electron could orbit at only specific distances from the atom's nucleus. When the electron is in the
How many ion H2- does have The H2- ion having three electrons. This can be conceived as the combination of a hydrogen atom with a hydride ion (H-). By the aufbau principle, two
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