A student was given a solution to find its pH. His teacher declared his recorded pH as wrong. Student explained to his teacher, all the steps done by him while finding pH of sample. Mark the step taken by student in which he committed mistake.
Collection of apparatus.
Recording observation.
Making pH paper wet and then dip it in sample.
Cleaning of all apparatus.
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making ph paper wet
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The step taken by the student in which he committed mistake is:
Making pH paper wet and then dip it in sample.
- When we have to check the pH, we take an aqueous solution.
- If pH paper is dipped in water before hand, it will measure the pH of that water.
- So, when this paper is dipped in the solution, the correct pH of the solution could not be found.
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