Which one among the following is an example of chemical change?
- A. Sublimation of camphor
- B. Melting of ice
- C. Heating of an iron rod
- D. Mixing of NaOH and HCI ✓
Correct Answer: D. Mixing of NaOH and HCI
Explanation
Mixing sodium hydroxide (NaOH) and hydrochloric acid (HCl) results in an acid-base neutralization reaction forming salt and water, which is a chemical change.
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