Which among the following methods is used to separate the constituents present in a compound?
- A. Electrochemical method ✓
- B. Heating method
- C. Fractional distillation
- D. Decomposition followed by ion exchange
Correct Answer: A. Electrochemical method
Explanation
Chemical compounds (like water, H_2O) cannot be separated into their constituent elements by physical means; they require chemical methods such as electrochemical separation (electrolysis).
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