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White phosphorus may be removed from red...

White phosphorus may be removed from red phosphorus by

A

Sublimation

B

Distillation

C

Dissolving in `CS_2`

D

Heating in air

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The correct Answer is:
C
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White phosphorous may be removed from red phosphorus by :

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Assertion : White phosphorus is more reactive than red phosphorus. Reason : It readily catches fire in air to give dense white fumes of P_(4)O_(10) .

Which of the following properties of white phosphorus are shared by red phosphorus ?

CENGAGE CHEMISTRY-P-BLOCK GROUP 15 ELEMENTS - THE NITROGEN FAMILY-Exercises (Single Correct)
  1. concentrared nitric acid oxidises cane sugar to

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  2. White P reacts with caustic soda, the products are PH(3) and NaH(2)PO(...

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  3. White phosphorus may be removed from red phosphorus by

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  4. Which one of the acids is a dibasic acid ?

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  5. Which one of the following can be used as an anaesthetic?

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  6. The catalyst used in the manufacture of ammonia by Haber process is

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  7. The catalyst used in the manufacture of NO by Ostwald's process is

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  8. Which of the following properties of white phosphorus are shared by re...

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  9. The number of P-O-P bridge in the structure of phosphorous pentoxide a...

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  10. Nitrogen molecule is chemically less active because of its

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  11. Addition of conc. HNO3 to conc. H2 SO4 gives

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  12. The reaction between NH2^(Ө) and N2 O gives

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  13. Red phosphorus is less reactive than yellow phosphorus because

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  14. Aqua regia is

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  15. The number of steps, in which orthophosphoric acid is ionised, are

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  16. Phosphorous is usually extracted from

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  17. PCl5 is kept in well stopered bottles because

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  18. The BCl3 is a polar molecule whereas NCl3 is pyramidal because

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  19. N2 forms NCl3 whereas P can form both PCl3 and PCl5. Why ?

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  20. Cl-P-Cl bond angles in PCl5 molecule are

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