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In an experiment to test the pH of a given sample using pH paper, four students recorded the following observations. Sample taken pH paper colour turned to (I) Water Green (II) Dil. HCl Red (III) Dil. NaOH Blue (IV) Dil. acetic acid Orange Which one will have pH value of 7? |
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Answer» In an experiment to test the pH of a given sample using pH paper, four students recorded the following observations. Sample taken pH paper colour turned to (I) Water Green (II) Dil. HCl Red (III) Dil. NaOH Blue (IV) Dil. acetic acid Orange Which one will have pH value of 7? |
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