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Which one of the following metals does NOT react with cold water to liberate hydrogen gas?

Options

  1. APotassium
  2. BIron
  3. CCalcium
  4. DSodium

Correct answer

B. Iron

Step-by-step solution

Metals like Fe , Al and Zn do not react with cold as well as hot water. They only react with steam to form the metal oxide and hydrogen.

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