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Write the balanced quations.:BF(3)+LiHra...

Write the balanced quations.:`BF_(3)+LiHrarr`

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OSWAAL PUBLICATION-Sample Paper 5-Exercise
  1. Beryllium and magnesium do not impart colour to bunsen flame. Why?

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  2. How could be baking soda prepared commercially ? Write its one use.

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  3. Write the balanced quations.:BF(3)+LiHrarr

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  4. Write the balanced quations.:AL+NaOHrarr

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  5. Write the balanced quations.:BB(2)H(6)+NH(3)rarr

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  6. What is the number of molecules of CO2 contains 8 g of O2?

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  7. Write any two points of importance of chemistry.

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  8. Give the experimental conclusions arrived by Rutherford in the alpha ...

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  9. The electronic configuration of a dispositive ion M^2 is 2,8,14 and it...

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  10. Write electron ic configuration of : Mn^4+

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  11. Write electron ic configuration of : Zn^2+

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  12. Using the s, p, d, notation, describe the orbital with the following q...

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  13. Using the s, p, d, notation, describe the orbital with the following q...

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  14. Using the s, p, d, notation, describe the orbital with the following q...

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  15. Define vapour pressure.

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  16. Define:Viscosity.

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  17. 0.068 dm^3 of a sample of nitrogen is collected is collected over wate...

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  18. What is extensive property of a system? Pick out the extensive propert...

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  19. A gas absorb 2000 j of heat and expands agains an internal pressure of...

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  20. Write any two differeces between spontaneous and non-spontaneous proce...

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