Chemistry
The reason for using Aluminium in the alloy duralumin is:
- Aluminium is brittle.
- Aluminium gives strength.
- Aluminium brings lightness.
- Aluminium lowers melting point.
Metallurgy
ICSE 2019
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Answer
Aluminium brings lightness.
Reason — As aluminum gives strength and brings lightness, hence, it is used in the alloy duralumin.
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