Home / iGCSE Chemistry Multiple Choice (Extended) : 9.1 Properties of metals: Exam Style Questions Paper 2

iGCSE Chemistry Multiple Choice (Extended) : 9.1 Properties of metals: Exam Style Questions Paper 2

iGCSE Chemistry MCQ (Extended) Paper 2 - All Chapters
Question

Which statement about the structure of metals explains why metals are malleable?

A) The electrons can move freely throughout the lattice.
B) The layers of metal ions can slide over each other.
C) The metal ions are positively charged.
D) There is a strong force of attraction between the metal ions and the electrons.

▶️ Answer/Explanation
Solution

Ans: B

Metals are malleable because their structure consists of layers of positive ions that can slide over one another without breaking the metallic bonds. The delocalized electrons (sea of electrons) can move to accommodate the new positions of the ions, maintaining the metallic bonding throughout the structure.

While options A, C, and D describe true aspects of metallic bonding, only option B directly explains malleability. The free electrons (A) contribute to conductivity, the positive ions (C) are part of the structure, and the strong attraction (D) explains the strength but not specifically the malleability.

Question

 Three metal compounds, J, K and L, are heated using a Bunsen burner.

The results are shown.

J colourless gas produced, which relights a glowing splint

K colourless gas produced, which turns limewater milky

L no reaction

Which row identifies J, K and L?

Answer/Explanation

Ans:

C

Question

Which statements about the general properties of metals are correct?

  1. They are good conductors of heat and electricity.
  2. They have low melting points.
  3. They react with dilute acids to form a salt and water.
  4. They react with oxygen to form basic oxides.

A 1 and 2                B 1 and 4                C 2 and 3                 D 3 and 4

Answer/Explanation

Ans:

B

Question

 The electronic structure of element Z is 2,8,1.

Which statements about Z are correct?

  1. It is a metal.
  2. It has two outer-shell electrons.
  3. It is in Period 3.

A 1, 2 and 3               B 1 and 2 only                C 1 and 3 only                D 2 only

Answer/Explanation

Ans:

C

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