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Transition metals, alloys and corrosion

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Question 21

An engineer compares the composition of two nickel-based alloys to see how their resistance to high-temperature chemical corrosion differs.

Composition of nickel alloys

ElementPercentage of element in nickel alloy with low corrosion resistance (%)Percentage of element in nickel alloy with high corrosion resistance (%)
Nickel74.558.2
Iron15.014.8
Molybdenum0.016.5
Manganese10.510.5

Using the table, state which metal is added to nickel to increase its corrosion resistance.

[1]

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

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