Explain the following
(i) Nitrogen is much less reactive than phosphorus.
(ii) `NF_(3)` is an exothermic compound but `NCl_(3)` is an endothermic compound.

(a) (i) Complete the following chemical equations : (i) NaOH_((aq))+Cl_(2(g)) rightarrow (Hot and conc.) (ii) Xef_(6)(s)+H_(2)O(l) rightarrow (b) How would you account for the following ? (i) The value of electron gain enthalpy with negative sign for sulphur is higher than that for oxygen. (ii) NF_(3) is an exothermic compound but NCl_(3) is endothermic compound. (iii) ClF_(3) molecule has a T-shaped structure and not a trigonal planar one.

Explain the following : Hydrogen fluoride is much less volatile than hydrogen chloride.

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.

(a) Complete the following chemical equations . (i) XeF_(4) + SbF_(5) rarr , (ii) Cl_(2) + F_(2) ("excess") rarr (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 value in NO_(2)^(-) and NO_(2)^(+) .

Explain the following facts giving appropriate reason in each case : (i) NF_(3) is an exothermic compound whereas NCl_(3) is not . (ii) All the bonds in SF_(4) are not equivalent

Explain the following : (a) The electron gain enthalpy with negative sign for fluorine is less than for chlorine, still fluorine is a stronger oxidising agent than chlorine. (b) XeF_(2) is linear molecule without a bend. (c) NCl_(3) is an endothermic compound while NF_(3) is an exothermic one.

NCl_3 is a stable compound. (T/F)

Heat of formation, Delta H_(f)^(@) of an explosive compound like NCl_(3) is -

(a) Explain the following : (i) NF_(3) is an exothermic compound whereas NCl_(3) is not (ii) F_(2) is most reactive of all the four common halogens. (b) Complete the following chemical equations : (i) C+H_(2)SO_(4) (conc) to (ii) P_(4)+NaOH+H_(2)Oto (iii) underset("excess")(Cl_(2)+F_(2))to

Which of the following option the first compound has less entropy than second: