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How temporary Hardness of water is remov...

How temporary Hardness of water is removed by Boiling ?

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OSWAAL PUBLICATION-Solved Paper 2019-1-Excercise
  1. Write the Electronic configuration of Oxygen molecule,Predict its magn...

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  2. Balance the following redox reaction by using Oxidation number method ...

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  3. How temporary Hardness of water is removed by Boiling ?

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  4. What is the composition of water gas?

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  5. Complete the following reactions.

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  6. Lithium shows diagonal relationship with Megnesium. Give reason.

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  7. Write the chemical formula of Inorganic benzene.

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  8. Write the dimeric structure of Aluminium chloride.

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  9. Define catenation.

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  10. Calculate the amount of carbondioxide produced by the combustion of 24...

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  11. Define Mole. What is the Value of Avagadro's Number.

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  12. Express the number 232.508 in scientific notation.

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  13. What are the observations made in Rutherford a-particle experiment.

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  14. Give any two postulates of Bohr's theory of atomic model.

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  15. Name any three quantum numbers and write their significance.

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  16. State Heisenberg’s uncertainty principle.

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  17. Write any four postulates of kinetic theory of gases

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  18. Define critical temperature. Write the value of critical temperatue fo...

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  19. Calculate the standard enthaly of formation of Methane. Given that the...

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  20. What is the change in the value of entropy when ice melts to give wate...

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