CIE iGCSE Co-Ordinated Science C8.4 Transition elements Exam Style Questions Paper 2
Question
Which statement describes a typical transition element?
(A) It has a high melting point, high density and forms a coloured salt.
(B) It has a high melting point, low density and forms a white salt.
(C) It has a low melting point, low density and forms a coloured salt.
(D) It has a low melting point, high density and forms a white salt.
▶️Answer/Explanation
Ans : A
Question
Copper is a transition element.
Which row shows two properties of copper?
▶️Answer/Explanation
Ans: A
Question
Element E is a transition element. It reacts with oxygen to form an oxide with the formula EO.
A student suggests three properties for element E and its oxide.
1. Element E floats on water.
2. The oxide EO is a white solid.
3. The oxide EO is basic and reacts with dilute acid.
Which of the suggestions must be correct?
(A) 1 and 2 (B) 1 only (C) 2 and 3 (D) 3 only
▶Answer/Explanation
Ans: D
Question
The diagram shows overlapping circles into which different chemical formulae can be placed.
Which formula can be placed in the shaded area because it has all three properties?
A Br2 B CO C Cu D Na
▶️Answer/Explanation
Ans : C