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Balance the following equation : FeS2 + ...

Balance the following equation : `FeS_2 + O_2 rarr Fe_2O_3 + SO_2`

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MBD PUBLICATION-BASIC CONCEPT OF THEORY-QUESTION BANK
  1. What is the value of GMV at NTP.

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  2. Balance the following equation : NaCl + H2SO4 rarr Na2SO4 + HCl

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  3. Balance the following equation : FeS2 + O2 rarr Fe2O3 + SO2

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  4. Balance the following equation : Cu+HNO3 rarr Cu(No3)2 + H2O +NO

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  5. Balance the following equation : Al + Fe3O4 rarr Al2O3 + Fe

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  6. Which of the following elements shows variable valency ? What are thos...

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  7. Write down the chemical formulae of the following compounds : Alumini...

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  8. What is the formula of lead nitrate ?

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  9. How many atoms are present in a molecule of white phosphorus?

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  10. Write down the chemical formulae of the following compounds : alumini...

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  11. How many atoms of oxygen are present in 4.4 gm of CO2 at NTP ?

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  12. What is the mass of 224 ml of oxygen at NTP ?

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  13. How many atoms are present in 10 gms of calcium carbonate ?

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  14. How many atoms of hydrogen are present in two molecule H3PO4?

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  15. How many moles of hydrogen molecules are there in one mole of hydrogen...

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  16. How many molecules will be present in one gram molecular mass of hydro...

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  17. fill up the gap : 2 mole of nitrogen occupies ml at STP.

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  18. What is the mass of half a mole of oxygen atom ?

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  19. one mole of sulphur contains atoms .

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  20. Weight of 0.2 moles of CO2 gas is gram .

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