(a) Give reasons for the following:
(i) Sulphur in vapour state shows paramagnetic behaviour:
(ii) N-N bond is weaker than P-P bond:
(iii) Ozone is thermodynamically less stable then oxygen.
(b) Write the name of the gas released when Cu is added to
(i) Dilute HNO3
(ii) Conc. HNO3
OR
(a) (i) Write the disproportionation reaction of H3PO3
(ii) Draw the structure of XeF4.
(b) Account for the following:
(i) Although fluorine has less negative electron gain enthalpy yet F2 is a strong oxidizing agent.
(ii) Acidic character decreases from N2O3 to Bi2O3 in group 15.
(c) Write a chemical reaction to test sulphur dioxide gas. Write the chemical equation involved..