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Complete the following reactions: (i) Pb...

Complete the following reactions: `(i) PbS(s)+O_3rarr`
(ii) `XeF_6+NaF rarr`
( b) Arrange the following in increasing order of property indicated ,given reason:
(i) Hydeides of group 15-boiling points
( ii) Hydrides of group 17 - acidic strength
(iii) Hydrides of group 16-reducing charcter.

Text Solution

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( a) `Pbs(s) O_3 rarr PbSO_4+O_2`
(ii)`XeF_6+NaF rarr Na+XeF_7`
( b) See Q.29 (or) (b) (i) Paper - 2014 ( C) Delhi Board ,Set-I[page 263]
(ii)`HF lt HCl lt HBr` Hi the size of halogens is incresing sdown the group so due to a large size difference between halogen and hydrogen , the compound can easily loose proton and this character of loosing proton depicts its acidity.
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