(a) Draw the structures of the following molecules ;

(i) H3PO2                                     (ii) CIF3

(b) Explain the following observations :

(i) Nitrogen is much less reactive than phosphorus.

(ii) Despite having greater polarity, hydrogen fluoride boils at a lower temperature than water.

(iii) Sulphur has greater tendency for catenation than oxygen in the same group.

Concept Videos :-

#2 | 15th Group: Properties: II
#3 | 15th Group: Ammonia

Concept Questions :-

group 15 ,preparation and properties
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