Which of the following options represents metals that do NOT  react with cold water?

Correct option is D

Correct Answer:D. Aluminium, iron, and zinc

Explanation:

·         Metals like aluminium, iron, and zinc do not react with cold water.

·         Instead, they require higher temperatures, such as steam, to undergo a chemical reaction.

·         Their reactivity is lower compared to metals like sodium, calcium, and potassium.

Key Points:

• Sodium, Calcium, Potassium: React vigorously with cold water, forming hydroxides and releasing hydrogen gas.
  Example: 2Na+2H₂O→2NaOH+H₂
• Iron, Zinc, Aluminium: Do not react with cold water but react with steam to form metal oxides and hydrogen gas.
  Example: 2Fe+3H₂O→Fe2O3+3H₂

Other Options Explained:

• A. Sodium, calcium, and zinc: Sodium and calcium react with cold water, but zinc does not.
• B. Sodium, iron, and potassium: Sodium and potassium react with cold water, but iron does not.
• C. Sodium, calcium, and potassium: All three react with cold water.