Chemical Reaction Principles | MCQs
کیمیائی رد عمل کے بارے میں کون سا بیان غلط ہے؟
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A. Chemical reactions may be fast, moderate or slow
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B. Chemical reactions occur with the absorption or emission of energy
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C. States of matter does not change during chemical reactions
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D. Chemical reactions produce new substances
Explanation
- The incorrect statement is: States of matter does not change during chemical reactions.
- During chemical reactions, states of matter can change.
- For example, a solid may dissolve in a liquid, a liquid may vaporize, or a gas may condense into a liquid.
✅ Correct: 0 |
❌ Wrong: 0 |
📊 Total Attempted: 0
