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Solutions in test tubes filled with H2 O and aqueous NaOH can be differentiated by using:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1A barometer
2A thermometer
3Red litmus paper✓
4Blue litmus paper

Correct answer

Red litmus paper

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Solutions in test tubes filled with H2 O and aqueous NaOH can be differentiated by using:

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Solutions in test tubes filled with H2 O and aqueous NaOH can be differentiated by using:

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