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How can you prepare dilute H(2)SO(4) con...

How can you prepare dilute `H_(2)SO_(4)` concentrated `H_(2)SO_(4)` in the laboratory?

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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-SHORT ANSWER TYPE (SA)
  1. Conc. H(2)SO(4) cannot be used for drying HBr/HI-why?

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  2. Sulphur exhibits +4 as well as +6 oxidation states but oxygen exhibits...

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  3. How can you prepare dilute H(2)SO(4) concentrated H(2)SO(4) in the lab...

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  4. Which out of SF(6) and TeF(6) will undergo hydrolysis at a faster rate...

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  5. H(2)S and H(2) cannot be dried by passing it through conc. H(2)SO(4) -...

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  6. Why is-ozone used for purifying air in crowded places like cinema hal...

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  7. How can O(3) be measured quantitatively?

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  8. Explain why the bond dissociation enthalpy of F(2) is less than that o...

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  9. Why do chlorine, bromine and iodine exhibit +3, +5 and +7 oxidation st...

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  10. Fluorine cannot be prepared by chemical oxidation of F^(-) ion-explain...

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  11. It is not possible to prepare HI by the action of conc. H(2)SO(4) on K...

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  12. State,with equation, what happens when Cl(2) reacts with cold NaOH sol...

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  13. HF is a weaker acid than HI, even though fluorine is more electronegat...

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  14. IF(7) exists but BrF(7) does not-why?

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  15. Explain why the negative electron gain enthalpy is less for fluorine t...

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  16. Arrange the oxoacids of chlorine in the order of increasing acidic str...

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  17. Arrange the oxoacids of chlorine in the order of increasing oxidising ...

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  18. What do you mean by pseudo halide ions and pseudo halogens? Give examp...

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  19. Identify the interhalogen compound with which ClO^(-) ion is isoelectr...

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  20. ICI is more reactive than I(2) -why?

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