(i) Which allotrope of phosphorus is more reactive and why ?
(ii) How the supersonic jet aeroplanes are responsible for the depletion of ozone layers ?
(iii) has lower bond dissociation enthalpy than . Why ?
(iv) Which noble gas is used in filling balloons for meteorological observations ?
(v) Complete the equation :
(i) White Phosphorus because it is less stable due to angular strain
(ii) Nitrogen oxides emitted by supersonic jet planes are responsible for depletion of ozone layer.
Or (1 marks)
(iii) due to small size of F, large inter electronic repulsion / electron- electron repulsion among the
lone pairs of fluorine (1 marks)
(iv) Helium (1 marks)
(v) (1 marks)