Chemistry · Acids, Bases and Salts
The solutions in two test tubes, one containing distilled water (H2O) and the other containing aqueous sodium hydroxide (NaOH), can be distinguished by using:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A barometer
- 2A thermometer
- 3Red litmus paper✓
- 4Blue litmus paper
Correct answer
Red litmus paper
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