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Which series of lines of the hydrogen sp...

Which series of lines of the hydrogen spectrum lies in the visible region?

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Balmer series of hydrogen spectrum lies in which region?

Statement I: All lines in the Balmer series of hydrogen spectrum are in the visible region. Statement II: Balmer series is formed due to transition of electrons from 2,3,4.... permitted energy levels to the ground levels.

In hydrogen atom spectrum

The ground state energy of hydrogen atom is -13.6 eV . If an electron makes a transition from an energy level -0.85 eV to -3.4 eV, calculate the wavelength of the spectral line emitted . To which series of hydrogen spectrum does this wavelength belong ?

Calculate the amount of energy released for transition of electrons associated with 1 gram atom of hydrogen so that lowest frequency spectral line is formed in the visible region of the spectrum. [R_(H)=1.1xx10^(7)m^(-1)] .

Which transition in the hydrogen atomic spectrum will have the same wavelength as the transition n=4 to n=2 of he^+ spectrum?

The short wavelength limit for the Lyman series of the hydrogen spectrum is 913.4 Å. Calculate the short wavelength limit for Balmer series of the hydrogen spectrum.

Which statement is /are correct about hydrogen spectrum?

Calculate the energy emitted when electrons of 1g atom of hydrogen undergo transition giving the spectral line of lowest energy in the visible region of its spectrum.

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of Co^(3+) is -

UNITED BOOK HOUSE-MODEL QUESTION PAPER 2-EXERCISE
  1. Briefly mention the role of ozone present in stratosphere in protectin...

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  2. Calculate the uncertainty in velocity of a moving object of mass 25 g,...

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  3. Which series of lines of the hydrogen spectrum lies in the visible reg...

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  4. Nitrogen has positive electron gain enthalpy.Explain.

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  5. Arrange Mg, Al, Si and Na in the increasing order of their ionisation ...

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  6. What are the characteristics of the transition elements and why are th...

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  7. Between Fe^2+ and Fe^3+ which is smaller in size?

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  8. ortho-nitrophenol is less soluble is water than p- and m-nitrophenols ...

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  9. Determine the number of sigma and pi bonds in sulphuric acid.

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  10. In case of CO3^(2-) ion,all the C-O bond lengths are equal explain.

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  11. Define co-ordination number.

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  12. Density of a gas is founded to be 5.46 g//dm^3 at 27^@C and at 2 bar p...

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  13. Critical temperature of NH3 and CO2 are 405.5 K and 304.10 K respectiv...

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  14. Calculate the standard enthalpy of reaction at25^@C temperature for th...

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  15. Calculate the entropy change, at 0^@C for the process H2O(s) rarr H2O(...

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  16. State the mathematical definition of enthalpy.

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  17. Mention the oxidation number of carbon atom in C6H12O6 molecule.

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  18. Balance the equations Cl2 + OH^(-) to Cl^(-) + ClO3^(-) + H2O

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  19. What is the oxidation number .of oxygen in Na2O2?

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  20. Balance . the following equation by oxidation number method : H2S + Cl...

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