CIE iGCSE Co-Ordinated Science C8.4 Transition elements Exam Style Questions Paper 1
Question
Some properties of different metals are shown. Which metals are transition elements?
| density g/cm³ | melting point/°C | colour of compound formed by the metal | |
|---|---|---|---|
| 1 | 1.54 | 851 | white |
| 2 | 8.91 | 1455 | green |
| 3 | 5.80 | 1890 | lilac |
| 4 | 11.3 | 328 | white |
A) 1 and 2
B) 1 and 4
C) 2 and 3
D) 3 and 4
▶️Answer/Explanation
Answer: C) 2 and 3
Explanation: Transition elements typically have high densities, high melting points, and form colored compounds. Metals 2 and 3 fit these criteria.
Question
Which row describes a transition element?
▶️Answer/Explanation
Ans :A
Question
A gas is used in welding metals together at high temperatures.
The gas is used to provide an inert atmosphere.
What is the gas?
A argon
B carbon dioxide
C fluorine
D oxygen
▶️Answer/Explanation
Ans :A
Question
What is not a property of transition elements?
(A) They often act as catalysts.
(B) They form coloured compounds.
(C) They have high densities.
(D) They have low melting points.
▶️Answer/Explanation
Ans: D