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

`H_2 O` is a liquid while `H_2 S` is a gas.

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`H_(2)O` molecules are stabilized by intermolecular hydrogen bonding, while `H_(2)S` by weak van der Waal’s forces.
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At room temperature , H_(2)O is liquid while H_(2)S is a gas . The reason is

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At room temperature H_(2)O exist as liquid while H_(2)S exist as gas. Give reason.

Water is a liquid, while H_2 S is a gas at ordinary temperature. Explain.

Explain (a )Which d-orbital in involved in (i) sp^(3) d hybridisation (ii) sp^(3) d^(2) hybridisation (iii) dsp^(2) hybridisation (iv) sp^(3)d^(3) hybridisation (b) Why H_(2)O is liquid while H_(2)S is gas (c ) Why KHF_(2) exists but KHCI_(2) does not (d) Benzene ring contains alternate single and double bonds yet all the C-C bonds are of equal lenght why (e) Out of P-F,CI-F,S-F and F-F bonds, which bond is the least ionic? .

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CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-VERY SHORT ANSWER TYPE QUESTIONS
  1. Why are the two S – O bonds in SO(2) molecule have equal strength ?

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

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

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

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

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

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

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

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  9. Explain why halogens are strong oxidizing agents.

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

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

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

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

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

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

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

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

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

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

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  20. Despite lower value of its electron gain enthalpy with negative sign, ...

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