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Write the order of thermal stability of ...

Write the order of thermal stability of the hydrides of Group-16 elements.

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`H_(2)O gt H_(2)S gt H_(2)Se gt H_(2)Te`
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KUMAR PRAKASHAN-THE P-BLOCK ELEMENTS -SECTION-B (INTEXT QUESTIONS AND ANSWERS)
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  2. List the important sources of sulphur.

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  3. Write the order of thermal stability of the hydrides of Group-16 eleme...

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  4. Why is H2O a liquid and H2S a gas ?

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  5. Which of the following does not react with oxygen directly ? Zn, Ti, P...

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

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  7. Why does O(3) act as a powerful oxidising agent ?

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  8. How is O(3) estimated quantitatively ?

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

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  10. Comment on the nature of two S-0 bonds formed in SO(2) molecule. Are t...

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  11. How is the presence of SO2 detected ?

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

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  13. Write the conditions to maximise the yield of H2SO(4) by Contact proc...

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  14. Why is Ka(2) lt lt Ka(1) for H2SO(4) in water ?

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

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  16. Give two examples to show the anomalous behaviour of fluorine.

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  17. Sea is the greatest source of some halogens. Comment.

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  18. Give the reason for bleaching action of Cl2.

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  19. Name two poisonous gases which can be prepared from chlorine gas.

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  20. Why is Icl more reactive than I(2)?

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