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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?

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

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

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

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

Transition metals, alloys and corrosion Questions

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

Practise Edexcel GCSE Chemistry Transition metals, alloys and corrosion with exam-style questions for Foundation and Higher tier. 97 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank