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?

Open in App

Solution

(a) Element X is Nitrogen gas (N₂) since the largest constituent of air is nitrogen. When nitrogen reacts with hydrogen in the presence of iron as a catalyst, ammonia (NH₃) is formed. Therefore, Y is ammonia (NH₃). When ammonia reacts with sulpuric acid, ammonium sulphate is formed which is used as a chemical fertilizer. Therefore, Z is ammonium sulphate (NH₄)₂SO₄.

(b) Nitrogen belongs to group 15 of the periodic table.

(c) Nitrogen is placed in the second period of the periodic table.

(d) Carbon (C) is placed just before nitrogen in the period.

(e) Oxygen (O) is placed just after nitrogen in the period.

Suggest Corrections

Similar questions

Q. An element

X

belongs to group III-A and 4th period in the periodic table. Find out the atomic numbers of

X

and the element which is placed just below

X

in the periodic table.

Q. (a) What were the two achievements of Mendeleev's periodic table? What was the basis of classification of elements in it?
(b) An element X (2, 8, 2) combines separately with (NO₃)⁻, (SO₄)²⁻ and (PO₄)³⁻ radicals.
(c) To which group of the periodic table does the element 'X' belong? Will it form covalent or ionic compound? Why?
(d) To which period of the periodic table does the element X belong? Give reason for your answer.
(e) Write the name and symbol of element X. Also give the name and symbol of another element which belongs to the same period as element X.

Q. Suppose ‘X’ is an element which belongs to the group II B of Mendeleev’s periodic table and ‘Y’ is another element which belongs to the group VII A of Mendeleev’s periodic table. The chemical formula of oxides of ‘X’ and ‘Y’ respectively are

Question 59
A non-metal A, which is the largest constituent of air, when heated with $H_{2}$ in 1:3 ratio in the presence of catalyst $Fe$ , gives a gas B.
On heating with $O_{2}$ , it gives an oxide C. If this oxide is passed into water in the presence of air it gives an acid D, which acts as a strong oxidising agent.

(a) Identify A, B, C and D
(b) To which group of periodic table does this non-metal belong?

An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting.

(a) How many electrons would be there in the outermost shell of the element X?

(b) To which group of the periodic table does the element X belong?

Join BYJU'S Learning Program