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Fill in the blanks: In compound P2O5 t...

Fill in the blanks:
In compound `P_2O_5` the valency is _____.

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JNAN PUBLICATION-ATOM, MOLECULE AND CHEMICAL REACTION-EXAMPLE
  1. Fill in the blanks: The atomic number of an element of 6 and mass nu...

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  2. Fill in the blanks: In L orbit maximum electrons can revolve.

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  3. Fill in the blanks: In compound P2O5 the valency is .

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  4. Fill in the blanks: Symbol of Aluminium Oxide is .

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  5. Fill in the blanks: Atomic weight of carbondioxide is .

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  6. Fill in the blanks: In chemical equaiton the atomic number of both s...

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  7. Fill in the blanks: Symbol of Silver is .

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  8. Fill in the blanks: Valency of Carbon is .

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  9. Fill in the blanks: Mass of one electron particle is of one Hydroge...

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  10. State whether True or False: Hydrogen reacts with nitrogen to produc...

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  11. State whether True or False: Chemical reaction is of one type.

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  12. State whether True or False: Ammonia is formed by the reaction of ni...

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  13. State whether True or False: Mercury and oxygen are produced when me...

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  14. State whether True or False: Formula of Ferric Oxide is Fe2O.

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  15. State whether True or False: Slacked lime is produced by the reacito...

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  16. State whether True or False: Water is produced by chemical combinati...

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  17. State whether True or False: The formula of hydrogen sulide is H2S2

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  18. What is the meaning of Greek word 'Atom'?

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  19. What is atom?

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  20. What is the mass number of an atom?

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