(a) Draw the structures of the following molecules :

(i) HPO33                              (ii) BrF3

(b) Complete the following chemical equations :

(i) HgCl2+PH3

(ii) SO3+H2SO4

(iii) XeF4+H2O

Concept Videos :-

#6 | 16th Group

Concept Questions :-

group 16,preparation and properties
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