General Science - Physics (Basics)
Which of the following is a sign of a chemical change?
Which of the following is a sign of a chemical change?
easy Q3 of 15
Step-by-Step Solution
Step 1: Identify signs of chemical change
Chemical changes often show color change, gas evolution, or formation of precipitate.Step 2: Analyze options
Change in color indicates chemical reaction; changes in shape, size, or state are physical changes.Final Answer:
Change in color → Option CQuick Check:
Sign of chemical change = Change in color ✅
Quick Trick: Color change often signals chemical reaction.
Common Mistakes:
MISTAKES- Confusing physical changes like shape or size change as chemical.
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