Account for the following:- Nitrogen and chlorine have same electro-negativity but nitrogen is inert at room temperature while chlorine is highly reactive.

Account for the following: Ionisation enthalphy of nitrogen is greater than that of oxygen

Account for the following : The electrical conductivity of a metal decrease wih rise in temperature while that of semi-conductor increases.

Explain why inspite of nearly the same electronegativity, oxygen forms hydrogen bonding while chlorine does not.

Accounting from the following : Ionization enthalpy of Nitrogen is greater than that of Oxygen.

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

Which of the following statements are correct about electrophilic substitution reactions of chlorobenzene 1) Chlorine is meta directing deactivator ? 2) 3) Chlorine is an o,p- directing deactivator 4) 5) Reactivity of the ring is controlled by strong-I effect of chlorine and orientation of the electrophile is controlled by its weak + R effect