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Why is K(a(2)) ltlt K(a(1)) for H(2) ...

Why is `K_(a_(2)) ltlt K_(a_(1))` for `H_(2) SO_(4)` in water ?

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`H_(2)SO_(4)(aq)+H_(2)O(l)rarrH_(3)O^(+)(aq)+HSO_(4)^(-)(aq),Ka_(1)gt10`
`HSO_(4)(aq)+H_(2)O(l)rarrH_(3)O^(+)(aq)+SO_(4)^(-2)(aq),Ka_(2)=10^(-2)`
`Ka_(2)` is less than `Ka_(1)` because `HSO_(4)^(−)` ion has much less tendency to donate a proton.
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CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-VERY SHORT ANSWER TYPE QUESTIONS
  1. The stability of the halides of group 16 elements decreases in the ord...

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

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

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

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

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

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

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

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

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  10. Explain why halogens are strong oxidizing agents.

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

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  12. What is cause of bleaching action of chlorine water ? Explain it with ...

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  13. Electron gain enthalpy of fluorine is less than that of chlorine - exp...

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  14. Why can’t we prepare HBr by heating KBr with sulphuric acid ?

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  15. Explain why : ICl is more reactive than I(2) ?

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  16. Which oxide of iodine is used for the estimation of carbon mono oxide ...

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  17. Arrange the following oxoacids of chlorine in increasing order of acid...

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  18. Why does fluorine not play the role of a central atom in interhalogen ...

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  19. Fluorine exhibit only – 1 oxidation state whereas other halogens exhib...

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  20. ClF(3) exists but FCl(3) does not. Why ?

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