Question

Rajat is a student of class X. One day all the students of class X were performing experiments in the science laboratory. Just then the chemistry teacher Mr. Prasad came to the laboratory. He had 3 beakers in his hands label as A, B and C. All the beakers contained colourless liquid. Mr Prasad said that one of the beaker contained water whereas other two contained acid and base. Mr Prasad wanted one of the student to find out experimentally which beaker contain water which contain acid and base. Mr. Prasad allowed them do use any required material or substance from the laboratory. Rajat offered to perform the experiment to distinguish between all 3.

Q2. Name the substance or material which you think he had chosen for his experiment.
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Answer 1

Answer:

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