General Science - Physics (Basics)
Which of the following is a pure substance consisting of only one type of atom?
Which of the following is a pure substance consisting of only one type of atom?
easy Q1 of 15
Step-by-Step Solution
Step 1: Understand the concept of pure substances
Pure substances contain only one type of particle; elements are pure substances made of one type of atom.Step 2: Analyze the options
Oxygen gas (O₂) is made of only oxygen atoms, so it is an element and a pure substance. Salt and sugar solution are compounds or mixtures, and air is a mixture of gases.Final Answer:
Oxygen gas (O₂) → Option CQuick Check:
Pure substance element = Oxygen gas (O₂) ✅
Quick Trick: Elements contain only one kind of atom.
Common Mistakes:
MISTAKES- Confusing compounds or mixtures as pure substances.
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