Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Air
B
Acid
C
Hydrogen
D
Oil
Understanding the Answer
Let's break down why this is correct
Answer
Sodium reacts with water to produce sodium hydroxide and hydrogen gas. Lithium, another alkali metal, reacts in a similar way, producing lithium hydroxide and hydrogen. The reaction is even more vigorous because lithium is more reactive than sodium. For example, dropping a small piece of lithium into cold water causes a bright splash and a burst of hydrogen gas. Thus the analogy is completed with lithium reacting with water.
Detailed Explanation
When lithium touches water, it fizzes and releases a gas. Other options are incorrect because Some people think lithium reacts with air because many metals rust; A common misconception is that acids are the main partners for alkali metals.
Key Concepts
Reactivity of Alkali Metals
Chemical Reactions with Water
Periodic Trends in Reactivity
Topic
Alkali Metals
Difficulty
easy level question
Cognitive Level
understand
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