AP EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
Which of the following alloys are correctly matched with their uses?
(i) \(\mathrm{Li} / \mathrm{Mg}\) armour plates
(ii) \(\mathrm{Cu} / \mathrm{Be}\) high strength springs
(iii) \(\mathrm{Mg} / \mathrm{Al}\) aircraft construction
- A i, ii only
- B ii, iii only
- C i, iii only
- D i, ii, iii
Answer & Solution
Correct Answer
(D) i, ii, iii
Step-by-step Solution
Detailed explanation
\(\mathrm{Li}\) and \(\mathrm{Mg}\) being hard metals are used as an alloy in armour plates. \(\mathrm{Cu}-\mathrm{Be}\) alloy is used in high-strength springs due to ductility of \(\mathrm{Cu}\). \(\mathrm{Mg}-\mathrm{Al}\) alloy is used in aircraft construction as…
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