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What happens when-Conc. H(2)SO(4) is add...

What happens when-Conc. `H_(2)SO_(4)` is added to calcium fluoride.

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When concentrated `H_(2)SO_(4)` is added to calcium fluoride, hydrogen fluoride is formed.
`CaF_(2)+H_(2)SO_(4)("conc.")toCaSO_(4)+2HF`
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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-SOLVED NCERT TEXTBOOK PROBLEMS
  1. Comment on the nature of two S-O bonds formed in SO(2) molecule. Are t...

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  2. How is the presence of SO^(2) detected?

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  3. What happens when-Conc. H(2)SO(4) is added to calcium fluoride.

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  4. What happens when- SO(3) is passed through water.

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  5. Mention three areas in which H(2)SO(4) plays an important role.

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  6. Write the conditions to maximise the yield of H(2)SO(4) by Contact pro...

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

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  8. Halogens have maximum negative electron gain enthalpy in the respectiv...

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  9. Although electron gain enthalpy of fluorine is less negative as compar...

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  10. Fluorine exhibits only -1 oxidation state whereas other halogens exhib...

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

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

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

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  14. Write the balanced chemical equation for the reaction of Cl(2) with ho...

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  15. Give the reason for bleaching action of Cl(2).

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

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  17. When HCl reacts with finely powdered iron, it forms ferrous chloride a...

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  18. Deduce the molecular shape of BrF(3) on the basis of VSEPR theory.

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  19. Why is ICI more reactive than I(2) ?

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  20. Why are elements of Group-18 known as noble gases?

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