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6.1 Transition metals, alloys and corrosion

6.1 Transition metals, alloys and corrosion

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Question 4

In the manufacture of certain ceramic glazes, chromium(III) oxide, Cr2O3\text{Cr}_2\text{O}_3Cr2​O3​, is used as a pigment.

Based on the position of chromium in the periodic table, which row shows the most likely melting point of metallic chromium and the colour of chromium(III) oxide?

A

Melting point of chromium: 64 ∘C64\text{ }^\circ\text{C}64 ∘C, colour of chromium(III) oxide: white

B

Melting point of chromium: 1907 ∘C1907\text{ }^\circ\text{C}1907 ∘C, colour of chromium(III) oxide: white

C

Melting point of chromium: 64 ∘C64\text{ }^\circ\text{C}64 ∘C, colour of chromium(III) oxide: green

D

Melting point of chromium: 1907 ∘C1907\text{ }^\circ\text{C}1907 ∘C, colour of chromium(III) oxide: green

Markscheme

6.1 Transition metals, alloys and corrosion Questions

  1. GCSE
  2. /Chemistry
  3. /6.1 Transition metals, alloys and corrosion

97 exam-style questions on Edexcel GCSE Chemistry 6.1 Transition metals, alloys and corrosion, covering 6.1.1 Properties of transition metals, 6.1.2 Corrosion and its prevention, and 6.1.3 Alloys and the uses of metals. Each one has a worked solution and a mark scheme showing where the marks go.

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