General Science - Physics (Basics)
Which of the following is NOT a characteristic of a chemical reaction?
Which of the following is NOT a characteristic of a chemical reaction?
medium Q7 of 15
Step-by-Step Solution
Step 1: Understand characteristics of chemical reactions
Chemical reactions involve new substances, energy changes, and often color changes.Step 2: Analyze options
Change in physical state alone (like melting or boiling) is a physical change, not a chemical reaction.Final Answer:
Change in physical state only → Option AQuick Check:
Change in physical state only = correct ✅
Quick Trick: Physical changes do not form new substances.
Common Mistakes:
MISTAKES- Confusing physical changes with chemical reactions.
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