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True of False: Both pyrophosphoric acid ...

True of False: Both pyrophosphoric acid and hypophosphoric acid have
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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Why conc. H2 SO4 is viscous and has high boiling point ?

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  2. True of False: In group 16, the volatility of hydrides first increases...

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  3. True of False: Both pyrophosphoric acid and hypophosphoric acid have ...

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  4. A solution turns red litmus blue, its pH is likely to be :

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  5. True of False: In SF4, S involves sp^3d hybridisation.

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  6. True of False: Nitrogen cannot form compounds of the type R3N =O while...

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  7. Complete the following statement- Composition of brass is-

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  8. True of False: Concentrated H2SO4 can be used to prepare HBr from NaBr...

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  9. "A" is a soluble acidic oxide. compared to pH of pure water what will ...

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  10. "B" is a soluble basic oxide. compared to pH of pure water what will b...

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  11. An aqueous solution has a pH value of 7 . is this solution is acidic, ...

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  12. Explain why blue vitriol changes to white upon heating.

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  13. Which of the following gives CO2 on heating ?

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  14. Give the name of following functional group ROR"

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  15. Name the functional group present in methoxy methane

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  16. In brown ring test for nitrates, Fe^(2+) ion reduces NO3^- ion to .......

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  17. PCl5 in solid state exists as ionic compound having cation ..............

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  18. The strongest reducing agent among all the halide ions is ...............

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  19. In CIF3 and SF4, Cl involves............... hybridisation and S involv...

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  20. Give the name of functional group present in propanol.

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