Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option.

Column I     Column II
A. XeF6        1. Distorted octahedral
B. XeO      2. Square planar
C. XeOF    3. Pyramidal
D. XeF4       4. Square pyramidal

Codes
A B C D
(a) 1 2 4 3
(b) 4 3 1 2
(c) 4 1 2 3
(d) 1 3 4 2

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Draw the structure of XeF2 molecule. 

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Draw the structures of the following molecules :

(i) XeF4                                             (ii) BrF3

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Draw the structural formulae of molecules of following compounds.

(i) BrF3 and                                  (ii) XeF4

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Explain the following :

(a) Xenon does not form such fluorides as XeF3 and XeF5.

(b) Out of noble gases, only Xenon is known to form real chemical compounds.

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How is XeO3 obtained? Write the related chemical equations. Draw the structure of XeO3.

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Complete the following equations :

(i) C + conc.H2SO4

(ii) XeF2+H2O

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How would you account for the following:

(i) NCl3 is an endothermic compound while NF3 is an exothermic one.

(ii) XeF2 is a linear molecule without a bend.

(iii) The electron gain enthalpy with negative sign for fluorine is less than that for chlorine, still fluorine is a stronger oxidising agent than chlorine.

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(a) Account for the following :

(i) Helium is used in diving apparatus.

(ii) Fluorine does not exhibit positive oxidation state.

(iii) Oxygen shows catenation behaviour less than sulphur.

(b) Draw the structures of the following molecules :

(i) XeF2                                                (ii) H2S2O8

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(a) Write the balanced chemical equations for obtaining XeO3 and XeOF4 from XeF6.

(b) Account for the following :

(i) H2S is less acidic than H2Te.

(ii)H3PO2 has reducing nature.

(iii) SO2 is an air pollutant.  

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