Questions of Storage of Reactive Metals - Questions at the end of the chapter - Chapter 4 Class 7 - The World of Metals and Non-metals (Curiosity)

Last updated at April 25, 2026 by

Q2 (Easy): Which of the following metal catches fire when it comes in contact with water? (i) Copper (ii) Aluminium (iii) Zinc (iv) Sodium

Answer:
We have studied that some metals like sodium and potassium are very reactive . This is why sodium catches fire with water.

  • Sodium is extremely reactive with water
  • It catches fire when water touches it
  • Copper , aluminium , zinc are less reactive
Metal Reactivity with Water Highly Reactive Sodium - catches fire Moderately Reactive Zinc - slow reaction Less Reactive Copper - no reaction
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