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Which of the following alkali metals is most reactive with water? (2023)

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Question: Which of the following alkali metals is most reactive with water? (2023)

Options:

  1. Lithium
  2. Sodium
  3. Potassium
  4. Rubidium

Correct Answer: Potassium

Exam Year: 2023

Solution: 

Potassium (K) is more reactive with water than Sodium (Na) and Lithium (Li).

Which of the following alkali metals is most reactive with water? (2023)

Practice Questions

Q1
Which of the following alkali metals is most reactive with water? (2023)
  1. Lithium
  2. Sodium
  3. Potassium
  4. Rubidium

Questions & Step-by-Step Solutions

Which of the following alkali metals is most reactive with water? (2023)
  • Step 1: Understand that alkali metals include Lithium (Li), Sodium (Na), and Potassium (K).
  • Step 2: Know that alkali metals react with water to produce hydrogen gas and a metal hydroxide.
  • Step 3: Remember that reactivity increases as you move down the group in the periodic table.
  • Step 4: Compare the reactivity of Lithium, Sodium, and Potassium with water.
  • Step 5: Conclude that Potassium (K) is the most reactive with water among the three.
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