(a) Complete the following chemical equations
(b) Explain each of the following :
(i) Nitrogen is much less reactive than phosphorus.
(ii) The stability of +5 oxidation state decreases down group 15.
(iii) The bond angles (O-N-O) are not of the same value in and .
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(b) (i) Due to presence of triple bond between two nitrogen atoms/high bond dissociation enthalpy of nitrogen, whereas in phosphorus molecule there is single bond between four atoms of phosphorus so have low bond dissociation enthalpy.
(ii) Because the participation of outer s-electron pair goes on decreasing down the group due to inert pair effect.
(iii) because has hybridisation whereas has sp hybridisation.