Explain the following observations:
(i) Phosphorus has a greater tendency for catenation than nitrogen
(ii) The negative value of electron gain enthalpy is less for fluorine than for chlorine.
(iii) Hydrogen fluoride has a much higher boiling point than hydrogen chloride

(a) Draw the structures of the following : (i) XeF_(4) (ii) H_(2)S_(2)O_(7) (iii) SO_(3)^(2-) (b) Explain the following observations : (i) Phosphorous has a greater tendency for catenation than nitrogen. (ii) The negative value of electron gain enthalpy is less for fluorine than that for chlorine. (iii) Hydrogen fluoride has a much higher boiling point than hydrogen chloride.

The negative value of electron gain enthalpy is less for fluorine than for chlorine . Why?

Explain the following situations : (ii) Sulfur exhibits greater tendency for catenation than selenium.

The negative electron gain enthalpy of fluorine is less than that of chlorine.

Ethyl alcohol has much higher boiling point than ether because

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

Electron gain enthalpy of fluorine is less than that of chlorine - explain.

S has more negative electron gain enthalpy than O why ?

(a) Draw the molecular structures of the following compounds : (i) N_(2)O_(5) " " (ii) XeOF_(4) (b) Explain the following observations : (i) Sulphur has a greater tendency for catenation than oxygen. (ii) ICI is more reactive than I_(2) . (iii) Despite lower value of its electron gain enthalpy with negative sign, fluorine (F_(2)) is a stronger oxidizing agent than Cl_(2) .

Ammonia has much higher boiling point than phosphine due to _____ .