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What is the number of helium atoms in 1 ...

What is the number of helium atoms in 1 mole He?

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 4-EXERCISE
  1. Fly- ash found is

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  2. In acidic medium, the equivalent wight of K(2)Cr(2)O(7) (Mol. Wt. =M) ...

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  3. What is the number of helium atoms in 1 mole He?

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  4. Give an example of diagonal relationship in periodic table

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  5. Which block element in the perodic table contains natural radioactive ...

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  6. What do you mean by state property?

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  7. Baeyer's reagent is -

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  8. Is the equivalent weight of element a variable quantity explain.

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  9. 1.46 gm of a metal oxide contains 0.24 gm oxygen. If the specific heat...

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  10. State aufbau principle. Write the electronic configration of- the elem...

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  11. State the Hund’s rule of maximum multiplicity. Wh Fe^(3+) ion is more ...

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  12. Write with balanced equation what happens when CO2 is pasped through s...

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  13. What happens when Boron and Concentrated H2SO4 is heated.

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  14. Why -NO2 group is meta Orienting.

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  15. What is Chloriosis? What is responsible for it?

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  16. Calculate the de Broglie wavelength of a stone piece of mass 25 gm mov...

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  17. Calculate the frequency and kinetic energy of a photon having waveleng...

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  18. What is screening effect? Arrange the orbital as per their increasing ...

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  19. Why CaF2 is insoluble in water? What type of bonding is observed in Li...

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  20. Which one has higher electrovalent nature among NaCl & AlCl3? Indicate...

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