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  • (a) Complete the following reactions : (i)  (ii) <img alt="XeF_{6}+NaF\rightarrow" src="ht

(a) Complete the following reactions :

(i) PbS(s)+O_{3}\rightarrow

(ii) XeF_{6}+NaF\rightarrow

(b) Arrange the following in increasing order of property indicated, giving reason :

(i) Hydrides of group 15 – boiling points

(ii) Hydrides of group 17 – acidic strength

(iii) Hydrides of group 16 – reducing character

 

 

 

 
 
 
 
 

Answers (1)

(a) (1) Pb(s)+4O_{3}\rightarrow PbSO_{4}+4O_{2}

      (2) XCF_{6}+NaF\rightarrow Na^{+}\left [ XeF_{4} \right ]^{-}

(b) (1) increasing boiling point 

            PH_{3}< A_{s}H_{3}< NH_{3}< SbH_{3}< BiH_{3}

    (2) Increasing acidic strength

            HF< HCl< HBr< HI

     (3) Increasing reducing character 

            H_{2}O< H_{2}S< H_{2}S_{c}< H_{2}T_{c}< H_{2}Po

 

Posted by

Sumit Saini

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