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Complete the equation : Ca3P2+H2Oto...

Complete the equation : `Ca_3P_2+H_2Oto`

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USHA PUBLICATION-P-BLOCK ELEMENTS( GR-15,GR16,GR17,GR18)-EXERCISE
  1. Balance the following equation : Cu+HNO3 rarr Cu(No3)2 + H2O +NO

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  2. Between NH3 and PH3 which is stronger reducing agent?

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  3. Complete the equation : Ca3P2+H2Oto

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  4. Write the increasing order of thermal stability of hydrides of Gr-16 e...

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  5. Why Cl2 has both oxidising and bleaching property?

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  6. Explain, why NH3is a complexing agent ?

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  7. What is anhydride of nitric acid?

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  8. What are the interhalogen compounds?Give examples.

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  9. Why is OF6 not known?

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  10. What happens when hydrogen lodide solution is added to lead acetate so...

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  11. Acidified K2Cr2O7 solution changes to when SO2 gas is passed through i...

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  12. What happens when hydrochloric acid is added to silver nitrate solutio...

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  13. Why does only xenon from stable compounds among the noble gases?

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  14. What was the first noble gas compound and who prepared it?

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  15. Write four characteristic properties of noble gases.

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  16. Why is neon used in beacon light ?

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  17. Which noble gas is used along with O2 for respiration by sea divers ?

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  18. What happens when Nal is heated with conc. H2SO4 ?

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  19. Oxygen exists as O2 while sulphur exists as S8,although they belong to...

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  20. What happens when Cl2 gas is passed through dry slaked lime?

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