Home / iGCSE / Coordinated Sciences / C8.1 Arrangement of elements Paper 1 |IITIAN ACADEMY

CIE iGCSE Co-Ordinated Science C8.1 Arrangement of elements Exam Style Questions Paper 1

CIE iGCSE Co-Ordinated Science Paper 1 - All Chapters

Question

The diagram shows the positions of some elements in the Periodic Table. Which element is in Group II and Period 3?

▶️ Answer/Explanation
Group II elements are in the second column of the Periodic Table. Period 3 corresponds to the third row.
Magnesium (Mg) is in Group II and Period 3. Among the labelled elements, the one in that position should be identified.
✅ Answer: (A)

Question

Which statement about elements in the Periodic Table is correct?

A. The density of the elements in Group I increases up the group.
B. The metallic character of the elements increases across a period from left to right.
C. The number of protons in the atoms of the elements increases across a period from left to right.
D. The reactivity of the elements in Group VII increases down the group.

▶️ Answer/Explanation
Across a period from left to right, the number of protons (atomic number) increases by one for each successive element. Group I density increases down the group (not up). Metallic character decreases across a period, and Group VII reactivity decreases down the group. Therefore, only statement C is correct.
✅ Answer: (C)

Question

Which element is used in the manufacture of sulfuric acid?

A. carbon
B. hydrogen
C. nitrogen
D. sulfur

▶️ Answer/Explanation
Sulfur is burned to form sulfur dioxide, which is then converted to sulfur trioxide and used to manufacture sulfuric acid in the Contact process.
Carbon, hydrogen and nitrogen are not the raw materials used in the manufacture of sulfuric acid.
✅ Answer: (D)

Question 

When a small piece of potassium is placed in water, hydrogen gas is given off very quickly. Which element reacts in a similar way?

A copper

B iron

C magnesium

D sodium

▶️Answer/Explanation

Answer: D sodium

Explanation: Sodium, like potassium, is an alkali metal and reacts vigorously with water to produce hydrogen gas. Both elements are in Group 1 of the Periodic Table, which means they have similar chemical properties, including their reactivity with water.

Question 

Part of the Periodic Table is shown.
Which statement is not correct?


A W and X are metallic elements.
B W and Z form an ionic compound.
C X and Y form a covalent compound.
D Z is a non-metallic element.

▶Answer/Explanation

Answer: C
Explanation: X and Y are both non-metals, so they would form a covalent compound, not an ionic one. The other statements are correct.

More CIE iGCSE Co-Ordinated Science Paper 1 Questions..
Scroll to Top