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Beryllium and magnesium do not impart co...

Beryllium and magnesium do not impart colour to bunsen flame. Why?

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OSWAAL PUBLICATION-Sample Paper 5-Exercise
  1. Distinguish between temporary hardness permanent hardness.

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  2. What happens when lead sulphide is reacted with hydrogen peroxide solu...

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  3. Beryllium and magnesium do not impart colour to bunsen flame. Why?

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

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

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  6. Write the balanced quations.:AL+NaOHrarr

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

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

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  9. Write any two points of importance of chemistry.

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

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

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

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

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

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

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

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  17. Define vapour pressure.

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  18. Define:Viscosity.

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  19. 0.068 dm^3 of a sample of nitrogen is collected is collected over wate...

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

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