A non-metal X which is the largest constituent of air combines with hydrogen when heated in the presence of iron as catalyst to form a gas Y. When gas Y is treated with sulphuric acid, it forms a compound Z which is used as a chemical fertilizer.
(a) What are X, Y and Z?
(b) To which group of periodic table does X belong?
(c) Name the period of periodic table in which X is placed.
(d) Which element is placed just before X in the period?
(e) Which element is placed just after X in the period?
(a) X is Nitrogen Gas (N2), Y is Ammonia (NH3) and Z is ammonium sulphate (NH4)2SO4.
(b) X belongs to the 15th group of the periodic table.
(c) X is placed in 2nd period of the periodic table .
(d) Carbon is placed just before X in the Period
(e) Oxygen is placed just after X in the period.