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09/10/2021 12:30 pm
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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 fertiliser.
(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?
1 Answer
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09/10/2021 12:32 pm
(a) X is nitrogen gas, N2 ; Y is ammonia gas, NH3 and Z is ammonium sulphate, (NH4)2SO4.
(b) 15th group
(c) 2nd period
(d) Carbon, C
(e) Oxygen, O