Question

Write two precautions required while finding the ph of the samples

Answer 1

ANSWER___(◠‿◕)

Two Precautions Required:_

1).Use a very sharp tipped pencil to draw thin lines to represent incident and refracted rays.

2). The convex lens should be of thin aperture, for obtaining the distinct image.

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Answer 2

1.Do not touch or taste any of the solution.

2.Use separate pH paper for testing different solutions.

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