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Arrange Mg, Al, Si and Na in the increas...

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

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 2-EXERCISE
  1. Which series of lines of the hydrogen spectrum lies in the visible reg...

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  2. Nitrogen has positive electron gain enthalpy.Explain.

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

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

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

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

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

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

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  9. Define co-ordination number.

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

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

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

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  14. State the mathematical definition of enthalpy.

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

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

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

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

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  19. What do you mean by ‘Non-stoichiometric hydrides'? Do you expect .this...

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  20. Which out of MgCO3, SrCO3 and BaCO3 possesses highest thermal stabilit...

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