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In group 16, the stability of + 6 oxidat...

In group 16, the stability of + 6 oxidation state decreases and that of + 4 oxidation state increases down the group. Why ?

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Due to inert pair effect.
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CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-VERY SHORT ANSWER TYPE QUESTIONS
  1. Explain why SF(4) is easily hydrolysed, whereas SF(6) is resistant to ...

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  2. In group 16, the stability of + 6 oxidation state decreases and that o...

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  3. Draw the structure of H(2)S(2)O(8) and find the number of S – S bond, ...

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  4. What happens when sulphur dioxide gas is passed through an aqueous sol...

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  5. All the bonds in SF(4) are not equivalent. Why ?

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

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  7. Which one of the following is not oxidized by O(3) ? State the reason ...

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  8. Why does oxygen not show an oxidation state of + 4 and + 6 ?

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  9. Oxygen and sulphur in vapour phases are paramagnetic in nature. Explai...

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  10. The stability of the halides of group 16 elements decreases in the ord...

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  11. Why are the two S – O bonds in SO(2) molecule have equal strength ?

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

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  13. H2 O is a liquid while H2 S is a gas.

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  14. The electron gain enthalpy with negative sign for oxygen (− 141 KJ mol...

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  15. Why is dioxygen a gas but sulphur a solid?

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  16. In the preparation of H(2)SO(4) by Contact process, why is SO(3) not ...

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  17. Explain why fluorine forms only one oxoacid, HOF.

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  18. Why HF is the weakest acid and HI is the strongest ?

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  19. Explain why halogens are strong oxidizing agents.

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  20. I(2) is more soluble in KI than in water. Why ?

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