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Indian Navy Pilot Metals and Non-metals — practice questions

Explore 2 free Metals and Non-metals questions in Indian Navy Pilot Science. Open each question or exercise to read its content, reference answers and available explanation.

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Metals and Non-metals questions and exercises with answers

Showing questions 1–2 of 2.

The thermit reaction, used to join railway tracks, involves the reaction of iron(III) oxide with:Read the answer and worked solution →A wire can be drawn out of a metal because the metal is:Read the answer and worked solution →

Worked practice questions

The thermit reaction, used to join railway tracks, involves the reaction of iron(III) oxide with:

  1. sodium
  2. zinc
  3. carbon
  4. aluminium
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Correct answer: D. aluminium

Thermit: Fe₂O₃ + 2Al → 2Fe + Al₂O₃, a highly exothermic displacement used to weld rails.

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A wire can be drawn out of a metal because the metal is:

  1. brittle
  2. sonorous
  3. ductile
  4. malleable
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Correct answer: C. ductile

Ductility = ability to be drawn into wires. Malleability is for sheets, sonority is for ringing.

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