Chemistry
Grade-7
Easy

Question

Identify the incorrect pair from the following.

  1. Duralumin, Aluminum 94%, 4% copper
  2. Brass, Copper and zinc (50%)
  3. Bronze, Copper 60% and tin 40%
  4. Steel, Iron 90% and carbon 2%

Hint:

Bronze, copper 60% and tin 40%

The correct answer is: Bronze, Copper 60% and tin 40%


    Bronze is a traditional copper and tin alloy. Modern bronze is typically composed of 88 percent copper and 12 percent tin.

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