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What happens when PCl(5) is heated?...

What happens when `PCl_(5)` is heated?

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All the bonds that are present in `PCl_(5)` are not similar. It has three equatorial and two axial bonds. The equatorial bonds are stronger than the axial ones. Therefore, when `PCl_(5)` is heated strongly, it decomposes to form `PCl_(3)`.
`PCl_(5)overset("heat")toPCl_(3)+ Cl_(2)`
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NCERT-THE P-BLOCK ELEMENTS-EXERCISE
  1. Bond angle in PH(4)^(+) is higher than that in PH(3).Why ?

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  2. What happens when white phosphorus is heated with concentrated NaOH so...

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  3. What happens when PCl(5) is heated?

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  4. Write a balanced equation for the reaction of PCl5 in heavy water.

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  5. What is the basicity of H(3)PO(4) ?

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  6. What happens when H(3)PO(3) is heated.

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  7. List the important sources of sulphur.

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  8. Write the order of thermal stability of the hydrides of group 16 eleme...

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  9. Why is H(2)O a liquid and H(2)S a gas?

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  10. Which of the following does not react with oxygen directly? Zn,Ti,Pt,F...

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  11. Complete the following reactions: (i) C(2) H(4) + O(2) to (ii)...

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  12. Why does O3 act as a powerful oxidising agent?

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  13. How is O(3) estimated quantitatively ?

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  14. What happens when sulphur dioxide is passed through an aqueous solutio...

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  15. Comment on the nature of two S–O bonds formed in SO(2) molecule. Are t...

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  16. How is the presence of SO2 detected?

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  17. Mention three areas in which H2SO4 plays an important role.

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  18. Write the conditions to maximise the yield of H2SO4 by contact process...

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  19. Why is K(a(2)) ltlt K(a(1)) for H(2) SO(4) in water ?

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  20. Considering the parameters such as bond dissociation enthalpy, electro...

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