(a) Give reasons for the following :

(i) Bond enthalpy of ${F}_{2}$ is lower than that of $C{l}_{2}$.

(ii) $P{H}_{3}$ has lower boiling point than $N{H}_{3}$.

(b) Draw the structures of the following molecules :

(i) $CI{F}_{3}$                                 (ii) ${\left(HP{O}_{3}\right)}_{3}$                            (iii) $Xe{F}_{4}$

Concept Videos :-

#7 | 17th Group

Concept Questions :-

group 17 ,preparation and properties
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