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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Difficulty Level:

Draw the structure of $Xe{F}_{2}$ molecule.

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Difficulty Level:

Draw the structures of the following molecules :

(i) $Xe{F}_{4}$                                             (ii) $Br{F}_{3}$

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Difficulty Level:

Draw the structural formulae of molecules of following compounds.

(i) $Br{F}_{3}$ and                                  (ii) $Xe{F}_{4}$

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Explain the following :

(a) Xenon does not form such fluorides as $Xe{F}_{3}$ and $Xe{F}_{5}$.

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

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How is $Xe{O}_{3}$ obtained? Write the related chemical equations. Draw the structure of $Xe{O}_{3}.$

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Complete the following equations :

(i) C + conc.${H}_{2}S{O}_{4}\to$

(ii) $Xe{F}_{2}+{H}_{2}O\to$

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Difficulty Level:

How would you account for the following:

(i) $NC{l}_{3}$ is an endothermic compound while $N{F}_{3}$ is an exothermic one.

(ii) $Xe{F}_{2}$ 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) $Xe{F}_{2}$                                                (ii) ${H}_{2}{S}_{2}{O}_{8}$

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(a) Write the balanced chemical equations for obtaining $Xe{O}_{3}$ and $XeO{F}_{4}$ from $Xe{F}_{6}.$

(b) Account for the following :

(i) ${H}_{2}S$ is less acidic than ${H}_{2}Te$.

(ii)${H}_{3}P{O}_{2}$ has reducing nature.

(iii) $S{O}_{2}$ is an air pollutant.