`NH_(3)` gas is liquefied more easily than `N_(2)`. Hence

NH_(3) gas is liquified more easily than N_(2) . Hence :

NH_(3) is liquefied more easily than N_(2) . Hence

Assertion : NH3 is liquidities more easily than CO_(2) . Reason : Critical temperature of NH3 is more than CO_(2) .

Give reasons for the following observations : (a) A deal is formed at the meeting point of sea water and river water. (b) NH_(3) gas adsorbs more readily than N_(2) gas on the surface of charcoal. (c ) Powdered substances are more effective adsorbents.