Multiple choice

Aluminium is used in making of aeroplanes because

  1. it has a high melting point.

  2. it does not react with atmosphere.

  3. it does not react with acids and water.

  4. it has low density as compared to other metals.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Aluminium is preferred for aircraft construction primarily due to its high strength-to-weight ratio, meaning it has a low density compared to other structural metals.

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