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Why is white phosphorus stored under wat...

Why is white phosphorus stored under water?

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Due to its low ignition temperature (303 K), white phosphorus on exposure to air, spontaneously catches fire. Therefore, to protect it from air, white phosphorus is stored under water.
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White phosphorus (P_4) has

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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. What is the difference between the nature of pi-bonds present in H3PO3...

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  2. Name three allotropes of phosphorus. Which out of these is most reacti...

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  3. Why is white phosphorus stored under water?

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  4. How is pyrophosphoric acid related to orthophosphoric acid?

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  5. Give reasons for the following : (i) Nitric oxide become brown on ex...

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  6. Give reasons for the following : NO2 is considered a mixed anhydride.

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  7. What is the basicity of phosphorus acid ?

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  8. Name the series of salts that are formed by orthophosphoric acid with ...

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  9. What is the state of hybridization of nitrogen in NO3^(-) ion ?

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  10. NO2 readily forms a dimer. Explain.

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  11. What is laughing gas ? How is it prepared?

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  12. On being slowly passed through water, PH3 forms bubbles but NH3 dissol...

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  13. Why does H3PO3 act as a reducing agent but H3PO4 does not?

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  14. Mention one use of hydrazine.

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  15. Basicity of H3PO2, H3PO3 and H3PO4 is not the same. Explain

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  16. What are chalcogens ? Why are group 16 elements called chalcogens ?

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  17. What is the outer shell electronic configuration of chalcogens?

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  18. Name the allotropes of oxygen.

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  19. Which element of group 16 has maximum tendency for catenation ?

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  20. Ionisation enthalpy of nitrogen is more than oxygen because of

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