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Question

Which is the metal that doesn't react with any form of water?
  1. Sodium
  2. Copper
  3. Potassium
  4. Magnesium


Solution

The correct option is B Copper
Sodium and Potassium reacts with water easily and thus are kept in kerosene. Magnesium reacts with boiling water.
Copper and aluminium doesn't react with water. Thus, they are preferred for the preparation of utensils, buckets, kitchenware and other articles.

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