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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

heating

D

heating with an alkali solution

Text Solution

Verified by Experts

The correct Answer is:
D
Red phosphorus is inert towards sodium hydroxide but white phosphorus reacts according to following reaction. `P_(4)+3NaOH+3H_(2)O to PH_(3)+3NaH_(2)PO_(2)`
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RESONANCE ENGLISH-P BLOCK ELEMENTS-Exercise 2 part 2 OBJECTIVE
  1. The gas obtained on heating lead nitrate to 400^(@) C :

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  2. A gaseous substance dissolve in water giving a pale blue solution whic...

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  3. White phosphorus may be removed from red phosphorus by :

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  4. Red phosphorus may be prepared from white phosphorus by :

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  5. Holme's signals produce burning gases which serve as a signal to the a...

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  6. Phosphorus trichloride, PCl(3) undergoes, hydrolysis at room temperatu...

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  7. Ortho phosphoric acid on heating above 300^(@)C gives :

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  8. 1 mol of H(3)PO(2), H(3)PO(3) and H(3)PO(4) will neutralise x mol NaOH...

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  9. At 200^o C, hydrogen molecules have velocity 3.4 × 10^4cm s^(−1) . T...

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  10. At 200^o C, hydrogen molecules have velocity 4 × 10^4cm s^(−1) . The...

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  11. At 200^o C, hydrogen molecules have velocity 5 × 10^4cm s^(−1) . The...

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  12. Which of the following reactions does not produce oxygen ?

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  13. The gases respectively absorbed by alkaline pyrogallol and oil of cinn...

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  14. Alkaline KIis oxidised by ozone to :

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  15. At 200^o C, hydrogen molecules have velocity 7 × 10^4cm s^(−1) . The...

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  16. What is the mass of photon of sodium light having a wavelength of 5890...

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  17. What is the mass of photon of sodium light having a wavelength of 4880...

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  18. When H(2)S is passed through nitric acid and acidified KMnO(4) solutio...

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  19. Consider the following compounds : (i) sulpher dioxide (ii) hydrog...

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  20. When an article is bleached by SO(2) it loses its colour. The colour c...

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