Multiple choice

When an alkali metal reacts with water, which one of the following gases is produced?

  1. Nitrogen

  2. Hydrogen

  3. Oxygen

  4. None of these.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When alkali metals react with water, they produce hydrogen gas along with metal hydroxide. The general reaction is: 2M + 2H2O → 2MOH + H2. This is a characteristic property of alkali metals like sodium, potassium, and lithium.

Keep practicing — related questions