(A) Explain why-
(i) Though nitrogen exhibit +5 oxidation state, it does not form pentahalides.
(ii) Interhalogen compounds are more reactive than their constituent elements.
(iii) The boiling of HF is very high ?
(B) Draw the structure of the molecule and state its geometry.

Explain why interhalogen compounds are more reactive than their constituent elements.

Though nitrogen exhibits +5 oxidation state, it does not form pentahalide. Give reason.

(a) Though nitrogen exhibits +5 oxidation state, it does not form pentahalide. Give reason. (b) PH_3 has lower boiling point than NH_3 . Why ?

(a) Though nitrogen exhibits +5 oxidation state, it does not form pentahalide. Give reason. (b) PH_3 has lower boiling point than NH_3 . Why ?

Give reasons for the following : (i) Though nitrogen exhibits + 5 oxidation state, it does not fonn pentahalide. (ii) Electron gain enthalpy with negative sign of fluorine is less than that of chlorine. (iii) The two oxygen-oxygen bond lengths in ozone molecule are identical.

Give reasons : (i) SO_(2) is reducing while TeO_(2) is an oxidizing agent. (ii) Nitrogen does not form pentahalide. (iii) ICl is more reactive than I_(2) .

(i) What are the types of hybridization of iodine in interhalogen compounds IF_3, IF_(3) and IF_7 , respectively ? (ii) Draw the structure of xenon hexafluoride (X_eF_6) molecule and state the hybridization of the central atom.

(a) Given reasons for the following : (i) Bond enthalpy of F_2 is lower than that of Cl_2 . (ii) PH_3 has lower boiling point than NH_3 . (b) Draw the structures of the following molecules : (i) BrF_3 (ii) (HPO_3)_3 (iii) XeF_4

(a) (i) Why PCl_(5) gives fumes in moisture ? (ii) Why Interhalogens are more reactive than pure halogens ? (b) Draw the structures of the following : {:((i) PCl_(5), (ii)H_(2)S_(2)O_(8),(iii)XeF_(4)):}

Halogens react with each other to form a number of compounds called interalogen compounds. Their genral formula is AX_(n) , where A is less electronegative halogen while X is a more electronegative halogen and n is its number. The interhalogen compounds are essentially convalent and more reactive than the halogens since the bond A-X is weaker than A-A or X-X bond. The reaction of interhalogens are similar to those of halogens. Which halogen shows maximum oxidation state in forming interhalogen compound ?